5 Fixes To Resolve MS Excel Runtime Error 57121


Are you the one struggling with the MS Excel runtime error 57121 while using working not the Excel file or during trying to open it? Then RELAX!!!, you are at the right place.

Here in this article check out the complete information about the run time error 57121 in Excel and its fixes to get rid of it permanently.

About Excel Runtime Error 57121:

MS Excel plays an important role from the business point of view, say small, medium, large business. It helps you to maintain a large amount of data in a single place.

This is undoubtedly a very useful application of the Microsoft Office suite. But there is also a fact this is highly prone to corruption and starts showing errors.

One of the most common errors in Excel is Runtime error.  In my earlier article, I have described various errors such as runtime error 1004, 32809, etc in Excel. And today in this article I am describing the runtime error 57121 in Excel.

Many users are found reporting about the runtime error 57121 in Excel 2013But this is not only limited to Excel 2013, the Excel 2003, 2007, and 2010 users are also found reporting about the error.

Well, this is very irritating as you are not allowed to access your Excel file or do anything, in that case, your business might get affected.

But as said Every problem has solutions, luckily the run time error 57121 in Excel can be fixed by following certain working solutions.

Follow the below given working solutions that helped many to get rid of the Excel run time error 57121 application-defined.

[cta-excel-repair-lite labl=”recover lost Excel data”]

How To Fix Runtime Error 57121 In Excel?

Well, there is no exact solution that works for you, here try the different solutions one by one and check which one works for you.

1: Disable Proxy
2: Dependent On The Register DLL
3: Enable the ActiveX Settings
4: Uninstall & Reinstall The Software
5: Repair Corrupt Excel File

Let’s have a detailed discussion about these fixes…..!

Method 1: Disable Proxy

Open the Command Prompt, in order to check, if you are behind the proxy. For this, you have to press the Windows key + R, both at the same time and then type CMD, and press OK.  cmd

  • A command prompt window would be opened, then type the following command
  • netsh winhttp import proxy source=ie
  • And hit Enter.

If you are getting, “Error writing proxy settings. (5) Access is denied.” In such cases, the runtime error 57121 can be fixed, if the proxy settings in internet explorer have to be disabled.

Method 2: Dependent On The Register DLL

If the MS Office is not installed properly or while updating the software some of the DLL files may get missed. In such cases, you would get the run time error 57121 application-defined as it is unable to start.

For this, you have to register the missing DLL file. in order to find the missing DLL file, you have to press Windows + R key at the same time and type regsvr32 dllfix.dll, and then hit OK.


The error is fixed now.

Apart from that, you can also make use of the automatic DLL Repair Toolto repair the corrupted, missing DLL files.

Method 3: Enable the ActiveX Settings

It is found that those who have disabled the Active X controls settings are struggling with the error. So, enable the ActiveX settings and check if the error is resolved.

Follow the given instructions:

  • In Excel click on the Office Button in the top left.
  • And choose Excel Options > choose the Trust Center category > click Trust Center Settings.

Enable the ActiveX Settings

  • Now choose the ActiveX Settings category.

Enable the ActiveX Settings 1

  • And manage the setting from Disable all controls without notification to one of the other options.

Hope this works for you but if not then uninstall and reinstall the software.

Method 4: Uninstall & Reinstall The Software

Another way of solving the Excel error 57121 is to uninstall the software, from the Control Panel. And then again reinstall the software. Hope this will fix the error but if still not then make use of the automatic solution to fix the error easily.

Method 5: Repair Corrupt Excel File

Make use of the professional recommended MS Excel Repair Tool to repair corrupt, damaged as well as errors in Excel files. This tool allows to easily restore all corrupt Excel files including the charts, worksheet properties cell comments, and other important data. With the help of this, you can fix all sorts of issues, corruption, errors in Excel workbooks.

This is a unique tool to repair multiple excel files at one repair cycle and recovers the entire data in a preferred location. It is easy to use and compatible with both Windows as well as Mac operating systems. This supports the entire Excel version and the demo version is free.

* Free version of the product only previews recoverable data.

Steps to Utilize MS Excel Repair Tool:

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Hope the given solution works for you to fix Excel runtime error 57121. Follow the given manual solutions one by one and check which one works for you.

However, if none of the above given manual methods works you then try the automatic solution to fix the error easily.

And also be careful while handling the Excel file and follow the best preventive steps to protect your Excel files from getting corrupted.

Despite it, always create backup of crucial Excel data and as well scan your system with a good antivirus program for virus and malware infection.

If, in case you have any additional questions concerning the ones presented, do tell us in the comments section below or you can also visit our Repair MS Excel blog section.

Priyanka is a content marketing expert. She writes tech blogs and has expertise in MS Office, Excel, and other tech subjects. Her distinctive art of presenting tech information in the easy-to-understand language is very impressive. When not writing, she loves unplanned travels.