8.3 file names

ricktea

Can 8.3 file names have less than 3 characters as their extension,

ie. myfile.tx

and can 8.3 file names have less than 8 characters in their
title. i.e. A.tx

sprkymrk

8.3 is the maximum on filename length in the FAT file system used in DOS and versions of Microsoft Windows prior to Windows 95. They can have no more than eight characters, followed by a ".", followed by a filename extension of at most three characters.

Yes, they can have less.