Automatic BDC execution?

Hello,

I have got a peculiar requirment. My client will be getting the records into EXCEL sheet through automatic data transfers machines. We wrote BDC for updateing those EXCEL records into SAP we gave a Txcode for our BDC program and when he executes the latest EXCEL records will be updateing when enduser gives the path of the EXCEL sheet.

Now the client is asking for automatic updation of records i.e after he gets the records into his EXCEL sheet with out his step of uploading he wants that EXCEL records to be update into SAP.

Can this requirment be fullfilled if yes help me to achieve this.