[Dx4win] IMPORT/EXPORT corrupted

[F6EXV]

Hello all
I recently installed the latest version on a couple of computers here.
My previous in-use version was 7.01
Trying to export a file to ADIF format (to upload to LotW after TQ 
treatment), I get a very strange screen when I open the import/export 
file with cabalistic signs, unreadable text, and the export will not work.
Where can I find all the file (the import/export programs file) ?
Thnaks + 73
Paul F6EXV