Cells won't merge in Microsoft Excel when the data is inside a table or when the workbook is protected or shared.

If Excel files are not opening on your Windows 11 computer, you can find the reasons and the most effective solutions in this article.

If your Excel spreadsheet always opens in a small window and not a maximized one, follow these steps to resolve the issue.

If Excel is not opening on double-click or not responding on your Windows 11/10 PC, take a look at the addons first, or else follow these suggestions to resolve the issue.