Hi John,
To protect some specific cells, you need to follow the two steps:
- Unlock all cells and lock the specific cells.
a. Click this icon to select all the worksheet> Home tab> Alignment group> Click the small arrow to open "Format Cells" window> Protection tab> Uncheck the "Locked" box.
b. Select the cells you want to lock> Home tab> Alignment group> Click the small arrow to open "Format Cells" window> Protection tab> Check the "Locked" box.
- Set password to protect the worksheet.
a. Review tab> Protect group> Protect Sheet> Set a password> OK.
Then you can upload your file to SharePoint and if an user downloads it, the specific cells will not be edited.
If it is not your scenario, could you please share your steps to protect the cells with me?
In addition, please also share your Office product name and version with me refer to this article: What version of Office am I using?
Best Regards,
Gloria