Hi, That appears to be :
( From a file extention finder):
DTF= ACDSee Use Database
A thumbnail database that tracks what you do in ACDSee. If the program starts to slow down you might recover some speed by deleting this and the .DDF associated file.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.