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 ...
Do you keep experiencing the #SPILL! error in your Excel worksheets on Windows? This error occurs when the formula you have used is unable to populate results into ...
How-To Geek on MSN
6 Excel problems Microsoft should finally fix in 2026
Excel still trips over dates, ghost links, and undo history. These six fixes would save hours for everyday users.
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