Can translated Excel files get a Language ID?


I have a project in which a source file comes from Excel. Is it possible to attach a language ID to the targets (e.g. file_en.xlsx)? The Excel parser add-in doesn't seem to provide this.
The texts are translated into more than 15 languages and it would be very disadvantageous if I could not distinguish between the files supplied by the translation agency.

Best regards
Silke Franz