The mso9.dll apparently is particularly prone to getting corrupted, and it usually causes troubles in PowerPoint, Word and Outlook rather than in Excel. There is a way to repair such corrupted files ...
To fix the Excel error, There's a problem with this formula in Windows, check for unmatched or missing parentheses & ensure the function syntax is correct dirst.
If you are experiencing the Download did not complete error message in Microsoft Excel, here are the troubleshooting methods to fix the error: Perform preliminary ...
Prevent broken formulas using tables, validation rules, separate worksheets, named variables, and the power of LAMBDA.
To fix the “Retrieving data, wait a few seconds” error in Microsoft Excel, start by waiting a moment and trying again. If that doesn’t work, reload the website ...