Download and install msexcl40.dll to fix missing or corrupted dll errors.
About msexcl40.dll
msexcl40.dll is a Dynamic Link Library (DLL), designed to share functions and resources among various programs. Instead of every application having its own set of functions, common functions are kept in .DLL files so they can be shared among many applications.
When an application requires msexcl40.dll, Windows will check the application and system folders for this .dll file. If the file is missing you may receive an error and the application may not function properly.
Windows .DLL Error Examples
This application has failed to start because msexcl40.dll was not found. Re-installing the application may fix this problem.
msexcl40.dll Not Found.
Possible fixes for msexcl40.dll errors
To fix .dll errors, you can try a few basic steps. While some errors might need more detailed fixes, these initial steps often solve common problems.
Re-Install the application that requires msexcl40.dll.
Update the application to the latest version.
Install all Windows updates and any available driver updates.
Manually download and install msexcl40.dll.
You may already have this .dll file even though you are getting .dll errors. That's because the .dll file may have been moved or renamed by another application. Check to see if you already have msexcl40.dll on your computer. For more information see how to search your PC for .dll files.
How to register msexcl40.dll
In some cases, you may need to register the .dll file. To register the .dll file, open Command Prompt as an administrator, enter the installation folder, and run the "regsvr32" command. You'll receive a confirmation if the .dll file is successfully registered.
C:\User\Username>cd c:\windows\system32
C:\Windows\System32>regsvr32 msexcl40.dll
Download msexcl40.dll
Select the .dll version to download. In most cases, this would be the latest version (32/64-bit) from the appropriate company.