Opening English files in German FrameMaker

[DNCatanzaro55]

I have some files, created in FrameMaker 11 that my company wants translated into two other languages.  The translation company uses FrameMaker but cannot open these files, or MIF files in either version 7 or version 11 format.  Is there something that needs to be done to prepare these files for a FrameMaker instance that uses another native language?

[Jeff_Coatsworth]

What message are they getting when trying to open your FM or MIF files?