There are two ways to fix this cause of the #SPILL! error. First, select the entire spill range (or at least the cell or ...
The cause appears to be the use of non-ASCII characters in file names. Microsoft describes it like so: “Any user may be unable to open Excel files attached to email messages in the new Outlook client ...
Microsoft has started looking into a problem that is preventing users from opening some Excel file attachments with non-ASCII file names in the new Outlook client for Windows. The issue has been ...