If the user has:
- a virtual solution (Parallels, etc.)
- with Office for PC installed
- and configured to  expose WinTel applications to the Macintosh Finder

The AppleScript commands may try to select the WinTel version of "Microsoft
Outlook". This—obviously—doesn’t work. By adding the Mac ~.app~ file
extension, we reduce this confusion and more reliably call the Macintosh
version of Outlook.

TINYCHANGE