A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
Dear Yoshimi Amos,
Thank you for reaching out. If Excel on the web displays a message asking you to use the desktop application when you try to edit a text box, it usually means that the particular text box or its formatting is not fully supported in Excel for the web.
In this case, could you please let me know:
- Is the workbook stored in OneDrive or SharePoint? Do you have Edit permission for the workbook, or is it opened in View Only mode?
- Is the text box a standard Excel text box, or is it part of a chart, shape, form control, or ActiveX control?
- Does the issue occur with all workbooks or only one specific file?
- Are you able to edit other cells and objects in the workbook normally?
In the meantime, please try opening the file in the Excel desktop application and check whether the text box can be edited there. Some advanced objects and features are only editable in the desktop version of Excel. For more information, please refer to Edit a workbook that contains features unsupported by Excel Web App
If possible, please share a screenshot of the message you receive and make sure that you have edit permissions for the file. If you have any questions or if I have misunderstood anything, please feel free to reach out. I'm looking forward to your update.