Administrator permissions

Try this to see whether it can be fixed:

1. Check Folder Permissions
Right-click the folder where you want to save → Properties.
Go to Security tab → click Edit.
Select your user account → ensure Full Control is checked.
If not, click Add, type your username, and grant Full Control.
Apply changes and retry saving.

2. Remove Read-Only Attribute
Right-click the folder → Properties.
On the General tab, uncheck Read-only.
Click Apply to all subfolders and files.
4Retry saving in Excel.

3. Avoid Protected Locations
Don’t save directly into C:\Program Files, C:\Windows, or other system directories.
Instead, use C:\Users\<YourName>\Documents or a custom folder you own.

4. Check Excel File Properties
Right-click the Excel file → Properties.
If you see an Unblock button (under Security), click it.
Ensure the file is not marked as Read-only.

5. Run Excel as Administrator
Right-click Excel → Run as administrator.
Try saving again.
If this works, it confirms a permissions issue with the folder.

6. OneDrive/SharePoint Sync Issues
If the folder is inside OneDrive, check whether the file is marked as Always keep on this device.
Right-click the file → OneDrive → ensure it’s not “Online-only.”
Sync conflicts can force files into read-only mode.