Unable to open xlf files in Windows 10 with SDL Trados Studio 2014 Freelance

I've recently updated to Windows 10 and now I'm unable to open xlf files in SDL Trados Studio 2014. I get an error that reads: "The identified target language does not match the expected project language". I know it has nothing to do with language codes, as I've had no problem opening the same files in a Windows 7 and Windows 8 PC. Any help?

I attach error message. Thanks in advance!!!!