Jan 10 2021
I used Office 365.
In this several week, I found all of the attachment are changed their type.
For detail :
attachment for excel the type should be .xlsx but it's changed tp be .xls_
attachment for word the type should be .docx but it's changed tp be .doc_
attachment for pdf the type should pdf .xlsx but it's changed tp be .pd_
How can I fix it?