A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hi Steven,
Please force the Excel to quit by following the steps in How to force an app to quit.
Then move the workbook you would like to delete to the Trash, or select it, then press Command (⌘)–Delete. If you would like to empty the Trash, click the Trash > Empty and you can also choose Finder > Empty Trash.
Thanks,
Tina