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Microsoft Excel allows the user to enter formulas, functions, calculations, and data into a Worksheet in order to gain useful results. It is also possible to insert other types of files into an Excel document. One has to use the Insert tab, but the problem is, there are times when it fails to work, and Excel can keep blocking files from being inserted because of the Trust Center.Excel keeps blocking files from being inserted
If Excel keeps blocking files from being inserted, chances are the file is blocked by Trust Center, or maybe the workbook or locked. In some situations, we could be dealing with a corrupted file.
Unblock the file via Trust Center Settings
The worksheet or Workbook is locked
Corrupted or damaged files
Administrative Security Policies
Protected PDFs1] Unblock the file via Trust Center Settings
The first thing a user must do is to check if the file is blocked via the Trust Center settings area. There are several reasons why a file might be blocked in Excel, but forget about those and focus on the most important ones.
Begin by opening Excel.
Untick the Open or Save boxes for the file type you want to open or save.
Read: How to change File Block settings in Microsoft Office programs2] The Worksheet or Workbook is locked
The most probable step to take here is to disable protection. To do this, please select the Review Tab.
Go to the Protect category on the Ribbon.
From there, you should see Unprotect Sheet or Unprotect Workbook.
Hit the Enter key and right away your Workbook or Worksheet should be open for edits.
Go ahead, then, and attempt to add a file to see if everything is under control.3] Corrupted or damaged files
Another problem that could be the cause behind Excel not accepting file additions may very well boil down to damaged, corrupt, or incomplete files. You see, if an external file sustains some form of damage or contains a set of corrupted resources, Excel will display an error message.
The same goes if parts of the file or information are missing, and in no way will Excel be able to complete the insertion.
This post will help you recover Corrupted files. The article should explain everything you need to know, so ensure to read carefully to get a full understanding of what to do.4] Administrative Security Policies
If you’re using a network that is tied to your job, then chances are one of the reasons why you are not able to add files could be linked to administrative security policies. Always bear in mind that your system administrator possesses the power to activate various levels of security conditions on a work-related network. Usually, admins will block files that can affect Excel or Office applications overall.
Now, it all depends on the type of files. For example, files that contain ActiveX controls, macro code, and other executable assets will be placed under scrutiny. So, what to do? You must determine which file types are not blocked and attempt to use those if possible.
Alternatively, contact the system administrator to see if they can temporarily change the security settings to allow certain file types to be inserted in Excel.5] Protected PDFs
For those who weren’t aware, users can insert PDFs directly into a Microsoft Excel worksheet as an object. But here’s the thing, if Excel displays an error message, then it means you may have come across the Protected Mode feature from Adobe Reader.
You will have to open the PDF in Adobe Reader, then disable Protected Mode. From there, insert the file again in Excel to see if it works as it should.
READ:What is the File block settings in the Trust Center?
The File Block settings in Office are designed to prevent outdated file types from running as normal on your computer. Instead, the files with either open in Protected View, or will not open at all. To solve this the user must disable the Open and Save features.Why can’t I open my old Excel files?
The inability to open your old Microsoft Excel files could boil down to corruption or incompatibility. In a situation like this, you may have to open the Excel file in Compatibility Mode.
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If you are an active Netizen and always depend on Wi-Fi connectivity for work and entertainment, it is unfortunate if your Wi-Fi frequently disconnects or fails to reconnect.
Occasionally, these problems can arise due to the device’s bug. Also, your Wi-Fi keeps disconnecting if your Wi-Fi signal is weak or unstable. Nevertheless, restarting your device and router can quickly overcome these issues.
In this article, we will first look at the causes behind this issue. After that, we will round up the article with the fixes.
Here are possible reasons that might lead to these problems.
Weak internet connection
The problem within the Router
Most of the device’s problems can be solved by simply restarting. If your Wi-Fi keeps disconnecting from your device, it is possible that your device has a bug. So, the first thing you should do is restart your iPhone.
If restarting doesn’t resolve the issues, you can move on to other fixes mentioned here in this article.
If you have a weak Wi-Fi connection, signal drops can happen. You also need to check how your internet is performing on other phones with the same internet connection. If other phones are working fine in the same network without any issues, which means your iPhone is having issues with that Wi-Fi.
Also, if other phones are also not working well and face a drop in signal or frequent disconnection, your internet connection might be the issue. For that, you can call your Internet Service Provider (ISP), or you can simply restart your Router to resolve the Wi-Fi problem.
You can also connect your iPhone with another Wi-Fi network and see if the problem only exists in the current network or if you are facing the same issues in every network.
This is another method you should try if your Wi-Fi keeps disconnecting on your iPhone. When you forget the network, it will be removed from your device, and you need to re-enter the password to join. This can work in many instances. So, you should try this.
If your Wi-Fi Assist feature is turned on, it will automatically switch your internet connection to cellular data whenever your Wi-Fi struggles to work. That is why your Wi-Fi might frequently switch to Cellular data and disconnect from the Wi-Fi. So, you can easily disable this feature, and you may notice the difference.
Connecting to the VPN can make your internet connection slower, leading to disconnection from the Wi-Fi. So, once you turn off the VPN, the problem might be solved. If you are using the third-party app VPN, you need to open it and turn it off. Or, if you use the VPN from your iPhone, you can turn it off from the settings.
You can enable the Auto-Join feature to switch between already connected Wi-Fi. When you enable this feature, your device will automatically leave the weak Wi-Fi network and connect to the stable Wi-Fi.
You may have also noticed that it disconnects from the Wi-Fi after you lock your iPhone. So, enabling the auto-join can help.
Although this setting is turned on by default, you still need to make sure it’s actually turned on for you. If it’s turned off, it can affect Wi-Fi and other wireless performance. Thus, Go to the settings below and toggle it on if it’s off.
If there’s no problem with your Router, you should try and reset the network settings. This will specifically just reset the network like Bluetooth, Wi-Fi, VPN, etc. This may work for your device if any network bugs hinder the Wi-Fi’s functioning. So, consider trying this method.
As mentioned earlier, there could be a possibility your iPhone may have some bugs and you should restart your device to resolve the minor bugs. However, if restarting the device couldn’t resolve it, you should update your device.
If you cannot update the device via Wi-Fi, you can use your cellular data to update. However, you need iOS 12 or higher to update through cellular data. Before using data, ensure to buy a data plan, as network carriers may charge high if you don’t purchase it.
Or you can also use iTunes to update the iPhone. For that, you need either Mac or Windows to perform the update. If, after updating, the device still couldn’t solve the problem, your iPhone might have some hardware damage. For that, you need to go to Apple Tech Support to troubleshoot it.
Transitioning from Excel to Python
Published April 27, 2023
Updated July 7, 2023Transitioning from Excel to Python
Many companies are now transitioning from Excel to Python, a high-level, general-purpose programming language created by Dutch programmer Guido van Rossum. A growing number of software developers today consider Python a worthy replacement tool for Excel due to the benefits the former can offer.Summary
The transition from Excel to Python can be justified due to the capability of the latter in executing complex calculations and algorithms.
Python is easier to learn and master, unlike Excel, which includes a personalized language known as VBA that is complex to master and execute.
Transitioning from Excel to Python enables users to enjoy various benefits, such as an open-source coding platform, many volunteer contributors, and free libraries.Using Excel and Python
Excel is a common tool for data analysis, and it is commonly used to carry out analytical operations in the financial industry. However, Excel tends to be more complex since it requires the application of VBAs. VBAs are complex to operate, and they make Excel difficult to work with when dealing with multiple operations during data analysis.
Python, as a programming language, offers various benefits compared to Excel. It is an open-source programming language, with numerous contributors who volunteer to provide regular updates to the code and improve its functionality.
On the contrary, Excel is a paid software that only provides program updates to those who bought the application, thus limiting its use. Python also comes with a wide variety of preinstalled libraries, which saves time for developers who would otherwise be required to create projects from scratch.Functional Integrations
A good data analysis software should be able to integrate with other analytical and non-analytical software. Python fits well into this description since it integrates well with other programs. Users can import and export different types of file formats into Python.
For example, Python is compatible with SQL syntax and can even run it within its framework to extract data and tables to its environment. The Python environment is also efficient in automating tasks such as importing data and writing analyzed data to Excel or CSV functions for data analysis.
Transitioning from Excel to Python can be justified from a functional integration point of view. First, Python is user-friendly, and both beginners and experienced analysts can use the language with ease. Excel uses VBA language, which is a personalized platform that uses macros to automate tasks for data analysis.
The use of macros to automate tasks is more complex than the automation of tasks in the Python environment. Also, the fact that Python can be easily integrated with other programs makes it more suitable for data analysis.
To learn more about the inner workings of Python, check out CFI’s Machine Learning for Finance – Python Fundamentals course!Code Compatibility
Data analysis code can be stored as scripts for reuse and further manipulation. Python code is reproducible and compatible, which makes it suitable for further manipulation by other contributors who are running independent projects. Unlike the VBA language used in Excel, data analysis using Python is cleaner and provides better version control.
Better still is Python’s consistency and accuracy in the execution of code. Other users can replicate the original code and still experience a smooth execution at the same level as the original code. The ability to reproduce code makes Python more efficient than Excel since users can bypass the initial coding process and start with an already functioning framework.Scalability and Efficiency
Data scientists prefer Python over Excel due to its ability to handle large data sets, as well as incorporate machine learning and modeling. When handling large amounts of data, Excel takes longer to finish calculations compared to Python. When data is loaded onto the two programs simultaneously, Excel will lag behind Python since it is not built to handle large amounts of data.
Compared to Excel, Python is better placed for handling data pipelines, automating tasks, and performing complex calculations. Moreover, it comes with a wide pool of manipulation tools and libraries.Python vs. Excel in Organizations
Python is considered a more efficient data analysis tool for complex calculations and large volumes of data. However, Excel is still more popular overall than Python, and it is used by a large number of people in financial analysis.
While Excel is not ideal for handling large volumes of data, it is a more convenient tool for organizations with small volumes of data that require simple calculations. Python, on the other hand, is more efficient than Excel when the organization handles large volumes of data that require automation to produce results within a short period.Additional Resources
About 1480 light-years away from Earth, a star is doing something astronomers have never seen before. Every now and then, at random intervals, its light dips by as much as 22 percent. That’s way too much to be a planet. And the star (officially named KIC 8462852, but informally called “Tabby’s Star” or “Boyajian’s Star”) seems to have gotten dramatically darker over the past century.
This odd behavior defies all known explanations, and astronomer Jason Wright has pointed out that these light patterns are similar to what we might expect if aliens built a complex of machines around the star to harvest its energy. But even Wright admits it’s much more likely there’s a natural explanation. In September, he and coauthor Steinn Sigurd̵sson rounded up and analyzed some of the most common explanations.
Wright has been been fleshing out those analyses in a series of posts on his blog.
We’ve rounded up our favorite explanations here, in rough order from least likely to most plausible.Did Kepler mess up? Nope.
The data checks out. When the Kepler telescope detected the huge light dips from KIC 8462852, nothing was wonky in the telescope, and there’s nothing particularly odd about any of the other data it collected at the same time.
Between 2009 and 2013, the Kepler space telescope stared at a single patch of the sky, searching for exoplanets. Around the star KIC 8462852, it appears to have spotted something much stranger. Artist illustration, NASA / Wendy Stenzel
It’s not possible that the telescope pixels that imaged Boyajian’s Star were faulty, because the star’s image wasn’t always on the same pixels. As the star moved throughout the month, and as the telescope shifted positions, different detectors monitored Boyajian’s Star, and they all showed that the star was acting bizarre. “The dips are real,” writes Wright.
For a few months, scientists argued about whether the star has been getting dimmer over the past century. Those observations were based on old and imprecise astronomy data. But a new analysis indicates the star dimmed significantly over the four years that the Kepler telescope watched it, and therefore probably over the past century as well.Could a black hole eat up the light? Nope.
Despite the popular image of a black hole gobbling up everything in its path, including light, black holes could not be responsible for darkening Boyajian’s Star.
Wright explained to Popular Science that if a black hole were sitting close to Boyajian’s Star, its massive gravity would make the star wobble, which scientists would be able to observe from Earth. It doesn’t wobble. Plus, if it were sucking material off of the star, the stuff falling into the black hole would actually give off bright light and extra xrays, which scientists don’t see.
But what if a black hole were sitting farther away from Boyajian’s Star, between the star and Earth? Still no. Counter intuitively, the black hole would act like a lens, actually brightening the light we would see from Earth.Could it be a sunspot? Unlikely.
Spots on our sun do cause tiny drops in brightness, but we’re talking about a few tenths of a percent. To cause a huge dip in KIC 8462852’s light levels, on the order of 20 percent, the starspots would need to be “10–100 times larger than the strongest effects known in other stars,” Wright noted in his blog post. Plus Boyajian’s Star is spinning rapidly, so the dips caused by those starspots would appear and disappear every day, instead of lasting for days.
But what if the spots were on the poles of the spinning star, and the pole is constantly pointed at us? That still seems pretty unlikely, says Wright, given the fact that Boyajian’s Star is a type of star that doesn’t usually have big spots.Comets? Maybe, but probably not.
Comets are actually the explanation favored by Tabetha Boyajian, the star’s discoverer. The idea is that a family of extra-large comets may be jumbled up in the star’s orbit, blocking its light in irregular ways.
If the comets are there, they must be pretty far away from the star, otherwise astronomers would be able to see extra heat coming off of them. The lack of extra heat rules out pretty much every potential explanation that relies on something big being in orbit around the star.
Illustration of the star KIC 8462852
Although scientists have suggested the weird light dips from this star might come from a family of mega-sized comets, there isn’t yet a scientific explanation that fits.
But while the comet hypothesis could explain the short-term dips in light that occurred in 2011 and 2013, it doesn’t explain the star’s long-term dimming, says Wright. And in his opinion, the best hypothesis should explain both phenomena.
“It is pretty outrageous,” Boyajian admitted in a recent webcast, “but all of the things that have been put forth have been pretty outrageous so far.”An interstellar black hole disk? Maybe!
Although a black hole is definitely not eating up the light from Boyajian’s Star, there’s another way a black hole could be blocking the light. Maybe there’s something big and dark in the interstellar medium between Boyajian’s Star and Earth.
A disk of material orbiting a black hole is one possible explanation. (Debris disks also orbit stars and planets, but since astronomers don’t see anything like that, this object would have to be dark … such as a black hole.)
For this hypothesis to work, the disk of material clotting around the black hole would have to be huge–something on the order of 600 times the distance between the Earth and the Sun–in order to block the star’s light for such long periods of time, despite the star’s monthly movements.
A disk of debris circling an interstellar black hole is one possible explanation for the weird behavior of Boyajian’s Star. NASA
Wright says that although we’ve never seen a black hole disk that big, it’s not ruled out by physics. If there is a large disk there, scientists might confirm this hypothesis if the debris passes in front of neighboring stars.Other interstellar stuff? Also maybe!
The space between stars is filled with gas, dust, as well as filaments and sheets of material clumped together by gravity. It’s possible that a particularly dense part of this interstellar medium got caught between us and Boyajian’s Star, absorbing some of its light.
To create the huge light dips, these filaments or sheets would need to be about 1000 times smaller and denser than we think they are, but it’s not impossible, says Wright. Maybe structures like that are just so small and rare that we’ve never spotted anything like it before now.
Like interstellar phantoms, dark nebula called Bok globules have been known to blot out stars. Hubble Heritage Team (STScI/AURA), NASA
Dark nebulae known as Bok globules could also be to blame. These black, star-forming clouds of dust and gas have been known to blot out stars before. Perhaps as turbulent gas and dust swirls around inside the globule, dense patches form and dim the light we see from Boyajian’s Star.
“It would be kind of unusual to see one of these clouds in this part of the sky,” says Wright, but it’s not impossible.
Both phenomena–the interstellar sheets and dark nebulae–would be expected to darken our view of the stars that neighbor Boyajian’s Star. Trouble is, the nearby stars are faint, which makes it difficult to measure their brightness precisely, so astronomers aren’t sure whether or not that’s happening.Aliens? Who knows.
The hypothesis that aliens are building a megastructure around the star to harvest its energy runs into the same problem the comets did: any object in orbit around the star should absorb light and re-emit it as excess heat, but astronomers aren’t detecting excess heat.
Artist illustration of a crumbling Dyson sphere
Illustration of a Dyson sphere around a star
But who knows, maybe an alien civilization capable of building star-sized structures has also figured out how to utilize all of the sun’s energy, including heat. That’s the problem with alien-related hypotheses–there’s no good way to disprove them, since we don’t know what such a civilization would be like or what they’d be capable of. It’s also impossible to calculate the odds of intelligent alien life out there in the cosmos, so it’s kind of tough to say how this hypothesis stacks up to the rest. However, we know interstellar material exists, and we don’t know whether aliens exist, so our money would be on the natural (non-alien) hypotheses.
Wright has been careful to point out that aliens should always be a last resort hypothesis, after everything else has been ruled out. Nevertheless, he and Boyajian and other scientists are investigating Boyajian’s Star using the most thorough alien-hunting equipment available.
Meanwhile, all manner of telescopes have turned their attention to Boyajian’s Star, from the Swift Observatory to the Spitzer space telescope to the backyard spyglasses of amateur astronomers. They are monitoring the star in optical, infrared, UV, and x ray spectrums. The next time something weird happens around Boyajian’s Star, scientists around the world will be ready to collect as much data as possible, to help settle the question of what the heck is going on around this star.
If you are trying to delete everything from your Google Drive account in one go but can’t seem to figure out exactly how to do it. This article will show you how to permanently delete everything you have stored on your Google Drive account. Unfortunately, there isn’t a quick easy-to-find solution that is obvious for everyone.
Related: How to fix the Google Drive sign-in loop error.
Google Drive is one of the best free storage services currently available offering a whopping 15GB of free storage space. Something that no other service can compare with. However, if you are also subscribed to a paid plan this can go all the way up to 30Gb. While this is awesome Google doesn’t offer a quick and easy way to clear all your files from your Drive account.
The good news is that there is a reasonable way to remove everything, though it does take a little time and isn’t a simple option or a tool. If you happen to have folders set up the process is straightforward as you can just delete the core folders one by one. But if you just have everything in the base Google Drive folder things are a little more complicated.
How do you delete all files from your Google Drive account? Delete everything from Google Drive.
To begin, the first thing that you will need to do is visit the Google Drive website and sign into your Google account (the one you want to delete everything from).
This will show you every single thing that you currently have stored on your Google Drive account.
Next, comes the annoying part. You are going to have to keep scrolling down the page until you reach the very bottom. Which may take a while if you have a lot of files.
Can I use this process to delete single or multiple files rather than everything?
If you just want to delete a few files you can use the exact same process, in fact, it’s usually a lot quicker. Just be aware that anything in the Bin will get automatically removed within 30 days.
Using Google Backup and Sync? Just delete the backup device and everything on it will be removed.
When you want to know the number of days between two dates whether the date is in the future or the past, you can use Excel to calculate it. You can easily use Excel formulas to tell you the number of days. This can be useful if you want to calculate the number of days you have for vacation or how long you have until you need to pay for an item.How to subtract a date from today in Excel
To subtract dates from today if the dates are in the past or the future, follow these steps:
Open and prepare Excel
Dates are in the future
Dates are in the past1] Open and prepare Excel 2] Dates are in the future
Here you will see how to subtract from today if the date or dates you want to use are in the future. In this article, additional information will be added to Excel to give you an idea of how you can use the formula in a real-world situation.
The Excel formula you would use would be formulated as =cell number with date – today (). You will plug in your cell references that match your information. The Excel document created as an example will be used to show how to do this. You will need to format your data to suit your needs.
This is the Excel document with the data added.
With the date written in and formatted, you can now enter the formula to subtract the date. You would enter that in the appropriate cell for your Excel document. In this article, it will be entered in the first cell under DAYS TO BDAY.
This is the formula that would correspond with the Excel document used as a demonstration=D6-TODAY()
D6 is the cell where you wrote the date, the minus sign (-) before today tells Excel to subtract the date in the future (D6) from today’s date.
To ensure that your answer is a number with no decimal points, you can format and use Number and set Decimal places to 0.
TIP: If you intend to add more dates below, you can drag the formula cell selection below where you have the date. This will allow the calculations to be done automatically whenever you enter dates.
This is the Excel document completed. Note that the formula did not depend on the date that was entered above in the Today’s date. That date is just a visual reference for the user.
You can make today’s date change each new day. To do that, go to cell F2 (put your cell reference)and write the following formula.
You can then choose the date format that you want for the date.
This is the Excel document formatted.3] Dates are in the past
Here you will see how to subtract from today if the date or dates you want to use are in the past. In this article, additional information will be added to Excel to give you an idea of how you can use the formula in a real-world situation. When the dates are in the past, you typically want to know how many days have passed after a particular event. To do this the formula is similar to the one for when dates are in the future, it is just tweaked a bit to show the difference. You are subtracting the date in the past from today’s date.
Below is the formula that you would use to calculate.= TODAY() -D6
When you have entered the data and all cells are populated as you need, you will realize that the numbers are negative. You will need to remove the negative signs automatically. To make numbers show up without the negative or any other signs, you would use Excel’s ABS function. The ABS function will return the Absolute value of the number. You can use the ABS on a number or a calculation and the result will come out without any negative signs. In this case, the ABS function will be used on a calculation and it will be written as follows.=ABS(D6-TODAY())
This formula tells Excel to return the absolute value of the result of the calculation. In the case of the number of days, you do not need any negative numbers so this would be ok.
This is the completed table with the numbers positive.
Being able to subtract a date from today is a great way to accurately calculate the number of days between dates.
Read: How to stop Excel from rounding numbersWhat does the ABS function in Excel do?
The ABS function or Absolute value is the positive value of the number, for example, the absolute value of -111 is 111. ABS would remove the negative sign and leave you with the absolute number. You can choose to get the absolute value of a number or the absolute value of the results of a formula.=ABS(-1110 would be 111
=ABS(D6-D4) would give the value of D6-D4 as a number without any negative signs.How can I add or subtract months from a date using the EDATE function in Excel?
To use the EDATE function you will need the starting date and the number of months to add or subtract. To add you put the numbers as they are and to subtract place a negative sign (-) in front of the number. You would place the start date in one cell and the number of months to add or subtract in another cell.
If you have the year in cell A5 and the months to add in cell B5 your formula would look like this: =EDATE (A5,B5).
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