i cannot save file as ".dbs" in gambit.
 

I am using gambit in virtual computer lab and cannot save file as .dbs. It is saved as .dbt. What should I do? TT

open a gambit session, and save.
Then check the transcript window bottom left: gambit writes what you did and transcipts it as commands (Command> save name "test.dbs")

Just change the extension to .dbs, works fine