These are 720k disk images.  You need Teledisk to recreate the disks.
Teledisk can be found at:

    ftp://tvdog.shacknet.nu/tandy1000/system/teled212.zip

The disks should be labelled:

Msdos.td0      MS-DOS/GW-Basic and Supplemental Programs
Dm1.td0        DeskMate 1:  DM Setup, Address Book, Text
Dm2.td0        DeskMate 2:  Draw, Music, Sound
Dm3.td0        DeskMate 3:  Kitchen Applications, Infocenter, Hangman
Dm4.td0        DeskMate 4:  Finance Applications, Telecom
Dm5.td0        DeskMate 5:  Personal Applications, PC-Link

These are the original disks for the 1000RL(-HD), models 25-1450 and 
25-1451.  They are unlikely to be useful on other models.
