iMyFone UltraRepair

One-stop solution to repair corrupted Excel files.

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Software these days opens so quickly that most of the time, we do not even get our hand off the button, and it is already working. It makes things so productive, and Microsoft Excel is one of the tools that help individuals and companies maintain productivity via spreadsheets. However, sometimes we have to face the Excel slow to respond issue. If you are also looking to fix Excel running slow, we have all the solutions for you.

excel running slow

Part 1: Possible Causes of Excel Running Slow

There are many reasons why Excel is running slow. In your case, there could be one or many issues impacting the performance of Excel at the same time. So it is important to know the real cause of this issue. Below are some of the possible causes for Excel running slow:

  • The Excel file is using excessive volatile functions.
  • Some unresolved formulas that make Excel slow to respond.
  • Having invalid names for the name manager feature can also make Excel slow to respond.
  • The most common issue is spreadsheets being too big.

Part 2: Top 9 Tips to Fix Excel Running Slow

Here we have searched for the best solutions to fix Excel running slow.

01 One-stop Solution to Fix Excel Running Slow

Having a corrupted Excel file can be a reason why your Excel is taking so long to work. Well, none of the solutions may seem effective for this, but sometimes, the video or photos which is meaningful for you been damaged will also bother you. At this moment, you can use iMyFone UltraRepair for help. With this tool, you can repair corrupted Excel, PDF, PPT file easily with just 3 simple steps.

ultraRepair_icon iMyFone UltraRepair
  • Repair types of files, namely Word, Excel, PowerPoint, etc.
  • Offer excellent add options to add corrupted files instantly.
  • Freely convert Excel files to words, PDF or PPT format without charge.

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See how to fix corrupted Excel file via iMyFone UltraRepair below:

Step 1.Click "Add File" to upload the file you want to repair.

add corrupted excel file

Step 2.Check the file you upload and start the repair procession.

check the uploaded file

Step 3.Keep waiting for the repair procession finished.

wait for the procession finished

Step 4.Save the repaired on PC..

save repaired file

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02 Start Excel in Safe Mode

The first and the simplest solution that you can try out is to start Excel in the Safe mode instead of the normal mode. You can follow these steps to open Excel on your computer in the safe mode:

  1. Close all Excel instances from Task Manager.
  2. Go to run program by pressing the Windows key + R. Then type Excel/safe and run.

run excel in safe mode

Now you will see safe mode on the top, indicating that now Excel is not open in normal mode.

03 Update Excel to Its Latest Version

Installing the latest updates is sometimes the best solution you can go for. You can get the latest updates in the following way:

  1. Open Excel and click on File.
  2. Go to Account > Product information > Update Options > Update Now.

update excel to the latest version

Now Office will automatically download and install all the latest updates available.

04 Turn Manual Calculation Mode on

Excel has this amazing feature that makes everything calculate again when you edit or enter something in the file. It seems good for small files, but when you have a lot of data, for example, daily basis data calculation, it will be slow. So, it will be better if you enable the manual calculation feature. Here is how you do it:

  1. Open Excel and go to files, then to options and find the Formulas section.
  2. You will find Calculation Options and workbook calculations there.
  3. Here you need to select the Manual. Also, uncheck the option that says "Recalculate Workbook Before Saving."
  4. Save everything, and you will see your file working faster.

turn manual calculation mode on

Now Excel will only be calculated when you manually press the F9 key to recalculate. It will be for saving a lot of resources.

05 Convert Unused Formulas to Static Values

Some people do not like formulas while some love formulas so much that they like to use them in every calculation. After all, formulas make using Excel so productive and easy. However, sometimes we only use a formula once, and then never use it. On the other hand, the formula might take up a lot of space in memory which will make things slow. So, you can convert them into static values, and everything will stay the same for you. Here are the steps that you need to follow:

  1. Click on the cell that has such a formula. Then replace the formula with the value it vives.
  2. Click on Save.

convert unused formulas to static values

It is that simple, and you will never be putting the burden on your computer because of that formula again.

06 Avoid Volatile Functions

Volatile functions are the functions that are recalculated with every step you perform on Excel. These steps are a major cause of Excel being slow for most people. A common example of these functions is RAND(). So, if you are looking for how to fix Excel slow to respond issues, you need to make sure that you are using these functions as little as possible.

avoid volatile functions rand

Take an example of using such a function that has its value effective for many cells. So, whenever a calculation completes, every cell has to change its value according to the formula. This never-ending chain reaction of repeating formulas makes things very slow. So, you need to use them generously and efficiently for the best experience.

07 Repair Microsoft Office

Sometimes repairing Microsoft Office is the right solution for making your Microsoft Excel program run like normal again. Below are the steps that you need to follow for this to work:

  1. Press the window key and search for Apps and Features.
  2. Select Microsoft Office and select the Change option, then click on Repair.
  3. repair microsoft office

  4. Follow through the repair process according to your version and complete the repair.

With these steps, you will be done with the Microsoft Office repair process, and your Excel should start working like normal.

08 Start Excel without Add-ins

Disabling Add-ins can be effective as long as you are using outdated third-party ones. So, here are the steps that will help you try this solution out.

  1. Open Excel and go for Files, then Options.
  2. Select Add-ins and then go for the manage dropdown to select Excel Add-ins.
  3. Click on the go, and you will need to uncheck all the options.
  4. Click OK and save everything.

start excel without add-ins

Restart Excel after these steps, and you may see a difference in performance and speed.

09 Avoid Using Entire Row/Column as References

Microsoft Excel is the program that thinks like software where when you reference an entire row or column, it manually checks things for every entry in that row and column. This takes a very long time, more than what you may be expecting. So, whenever you need to refer to something, make sure that you are not using the entire row or column as the reference.

row function in excel

FAQs: Common Issues about Excel You May Want to Know

1 How do I clear Excel cache in Windows 10?

Clearing Excel cache in Windows 10 is a process that takes a few steps. You need to go to the Upload Center and then to settings. There you will find the option to Delete cache files. Confirming to delete will get the job done for you.

2 Why is Excel file so large with little data?

In most cases, the reason behind this has hidden worksheets, and one of those worksheets has huge data. Data redundancy between worksheets is another cause.


Facing your Excel running slow can be very irritating, especially when you have to use Excel files frequently. So, the only thing you can do is to know how to fix Excel slow to respond issue. In this way, you will be able to resolve the problem on your end, and it will make things quite smooth for you. Try iMyFone UltraRepair now, maybe it can solve your issue perfectly!

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