Microsoft Excel has been one of the go-to spreadsheet apps for several decades, and it's developed an array of tricks throughout its lifetime, not just for making data entry, editing, and organization ...

If Excel keeps blocking files from being inserted, chances are the file is blocked by Trust Center, or maybe the workbook or locked. In some situations, we could be dealing with a corrupted file.

Some Office users have recently experienced “Unknown error trying to lock file” while using Office apps like Excel, Teams, OneDrive, PowerPoint, etc. It’s even ...