Have you tried this? Enter some text in a new message, select the text, Ctrl+K to insert a link, Choose File... to browse to the file (set the appropriate file name filter). It works here with files on the local drive, but might need permission modifications for a network drive.

Using the 'browse' button would only allow .txt, html and something else but not just any file or folder.

But I did find out that if I use file explorer to copy the file or folder path I can paste in into the dialogue and it will work.

I guess that's a fair security measure, but it's a shame it's not in any of the help pages.

Thank you sfhowes for leading me in the right direction.

John in Oregon

It works here with any kind of file if the filter is set to All files *.*, even exe files. I have the TB profile folder excluded from AV scanning, the recommended setting, but if you don't, that might explain your result.