Cannot open XLSM files to edit (changes are not read back to note)

[AlbertR 542]

If I add an Excel .xlsm file (spreadsheet with macros) as an attachment, it is available and can be opened by Double-click or ...->Open command. Like with .xlsx files (normal spreasheets), it is saved to a subfolder of your personal documents-tree ...\Dokumente\Evernote\...\external-edits\...\...\

But:

• If you change anything within the XLSM document and save it, EN does not read it back to the note to replace the current attachment

This all works fine for XLSX documents (which is described in Preview spreadsheets in notes – Evernote Help & Learning)

It is a substantial need for me to be able to edit XLSM documents (as it was possible with no problem in Legacy)

[AlbertR 542]

FYI: I added this also as support #3839476 - hope they can help on this before Legacy dies...