upload excel contents with multi-sheets

Hi experts,

At present I encounter such requirement:

the customers have a excel template,this excel has two sheets,one includes PR data,and the other has the PO data.They want to upload these data into SAP system at once.And I check the FMs SAP offers,they only support to upload one sheet data into SAP at once.Has any FM can support this??

So What can I do??Could you please help to give some adivce or solutions?!

Thanks a lot & best regards,

Villy.Lv