is it possible to check upload excel file font ?

Hi Experts.

I made Excel file upload program via WebGui, but in default font "Calibri", it is not working well.

(some values in cell are not recognized and become space in upload internal table)

If the file font is not "Calibri", it's working fine.

(the items as I mentioned before can be recognized.)

So I want check font of the file is not "Calibri".

Do you have any idea to do so?

Best Regards.

Miho