Excel prompts you to grant access to files and then hangs or shows a warning that it cannot open the .xlsx file because the format or extension is not valid
Last Updated: June 11, 2019
ISSUE
You may receive an unexpected prompt to Grant Access to files when you try to open a file or do "Save as..." or "Save a copy". When this happens, Excel may become unresponsive and you will need to force quit the application to recover.
STATUS: WORKAROUND
We are investigating this issue, but you may work around the problem by following these steps:
Quit Excel.
Go to Finder on your Mac.
Press SHIFT+CMD+G and paste this folder path into the Go Todialog: ~/Library/Containers/com.microsoft.Excel/Data/Library/Preferences
Select OK to go to the folder.
Find the file called com.microsoft.Excel.securebookmarks.plist and move it to the Trash.
Restart Excel.
Last Updated: June 11, 2019
ISSUE
You may receive an unexpected prompt to Grant Access to files when you try to open a file or do "Save as..." or "Save a copy". When this happens, Excel may become unresponsive and you will need to force quit the application to recover.
STATUS: WORKAROUND
We are investigating this issue, but you may work around the problem by following these steps:
Quit Excel.
Go to Finder on your Mac.
Press SHIFT+CMD+G and paste this folder path into the Go Todialog: ~/Library/Containers/com.microsoft.Excel/Data/Library/Preferences
Select OK to go to the folder.
Find the file called com.microsoft.Excel.securebookmarks.plist and move it to the Trash.
Restart Excel.