I'm almost sure I will have to create a new excel file, but maybe at least here I get some ideas what was the source of the problem.
My excel file is constantly giving the following error:
Excel found unreadable content in 'filename.xlsm'. Do you want to recover the contents of this workbook? If you trust the source of this workbook, click Yes.
So I do. And the file opens as repaired showing:
Removed Records: Sorting from /xl/worksheets/sheet10.xml part.
The detail is that I don't even have a sheet10
Its a big excel file full of custom-objects. But I have no DB connections or autofilter so could not relate to AutoFilter Criteria Using Array (Error) - Too Large String? or xlsx error: "Removed Records: Named range from /xl/workbook.xml part" when tried to resolve errors.
Anyone has a clue what's going on?
tks in advance