InfoSource Segment Information

Hi guys,

My scenario like, every day the .txt data is comming from different areas into my staging server, in staging server the data is converted into .csv files. Finally i have to uplaod these files into BW. The information comming like different segments i.e.,

First segment contains Header Information,

Second segment contains Item Information,

Third segment contains Tax amount Information,

like total 6 segments info comming to BW. my question is how so i map at InfoSource with these data, suggest me which data Target is relevent and how we can take this data into BW. plz suggest me mapping at InfoSource.

Regards,

Rams.