Auto Upload of XLS files versus XLSX
So when I open and close an XLS file from WinSCP (without making any changes to the file's contents) the file automatically gets uploaded and saved on my SFTP. The "Changed" date stamp gets updated and ownership changes if I wasn't previously the owner. However, if I do the same to an XLSX file, the file does not automatically upload, which makes sense because I didn't make any changes to the file's contents. Any idea why this is happening to my XLS file? I don't want a file to update just because I open and closed it.