How to apply bilingual Excel file type to an excel file?

Dear Studio 2017 users,

I am having a difficult time trying to use bilingual Excel file type for an .xls file.  I tried opening the .xls file directly using open single document for translation.  I also tried creating a project for it.  Both methods used the regular excel file type, which of course is not what I wanted.  Can someone tell me how to set it up so that the bilingual Excel file type will get the priority when importing this Excel file in Studio?

Also, the file has lots of cells highlighted in red that the client wants me to skip.  When I looked at the imported Excel file (using the regular excel file type), I did not see any cells highlighted in red.  Does this mean that even if I successfully used the Bilingual Excel file type, I would lose this highlighting formatting after the file is imported in Studio?

Thank you in advance for answering my questions!

Chunyi