The cause appears to be the use of non-ASCII characters in file names. Microsoft describes it like so: “Any user may be ...

Microsoft has started looking into a problem that is preventing users from opening some Excel file attachments with non-ASCII ...

There is a workaround, though.

Use the following solutions to get rid of the “Sorry, Excel can’t open two workbooks with the same name at the same time” error message in Excel. To unhide the ...

Here, in this section of the post, we will recommend the five most effective tools and methods to repair the Excel file. Microsoft Excel’s Native Repairing Feature Online File Repair Service Recovery ...

Have you ever been in a place where you’ve been working on an Excel file for hours, and suddenly all of your work has been lost? It might be due to an unexpected power loss or a system crash, ...

Microsoft is working to resolve a known issue that prevents some users from opening Excel email attachments in the new Outlook client.