That's what makes read-only such a useful resource ... When you share your own Excel document, you can lock it by changing the permissions of who you are sending it to. You lock it through ...

You may have gotten an Excel file from someone, but you’re not able to edit it due to a strange Read-only notification. There are several ways to get around this problem, and like always ...

This change means that files saved from Excel 2007 or later won't open natively ... the file is opening as "read-only." It's possible that the document's owner intended to save it that way ...