SmartArt is visually used to communicate information. We explain how to add and modify SmartArt diagrams in Microsoft Excel.

To fix an Excel spreadsheet not adding up correctly, check the SUM function's syntax and make sure there aren't any text format cells in the sheet.

Learn how to add the strikethrough effect in Outlook for desktop and web. Outlook has a single/double strikethrough feature just like every other Office 365 app.

Reason: The issue description indicates that the problem with installing add-ins started occurring after a recent update to Excel for MacOS Version 16.100 (25081015). The user explicitly mentions that ...