These are 360k disk images in raw format.  The disks should be 
labelled:

Disk1.dsk      MS-DOS/GW-Basic 3.2.0
Disk2.dsk      MS-DOS - Supplemental Programs
Disk3.dsk      DeskMate II 1.0.0
Disk4.dsk      DeskMate II Sample Files

The DOS disk contains Tandy DOS 3.2, which is usable on other 1000-
series models (it will not run on a non-Tandy machine).
