Upload CSV file - Special Char problem

Hellow everyone,

i'm trying to upload a CSV file using file upload.

File upload give me an XSTRING and therefor I use the fm HR_KR_XSTRING_TO_STRING to convert to sting.

Which works perfectly I would say except for special chars 'éèà',( for the info I dont use any chineese char...)

I suppose I should give the function module parameter FROM_CODEPAGE but which code page ? How to determine this ?

Cheerz