Strange Win32 error Filetime error with Power Query

[dbrault57]

Hi all,

I am using a query that merges some Excel files through a folder. It works perfectly until any of the individual source files is simply opened from specifics laptops.
Same config for all laptops (Professional Plus 2016 and same regional settings), but on some specific ones, I open any of the source file and just save and close it - even without modifying it - the query fails with the following error:
Expression.Error: Not a valid Win32 FileTime.
Parameter name: fileTime
Details:
\\filename ...
If I simply open this "durty" file from other laptops with no problem and just save it, the query works again.

any Idea would be welcome
KR