Transferring data from Excel to SAP

Hi Experts,

My purpose is to update customer prices from Excel to SAP automatically with a script. My problem is: I dont know how to call a certain Excel-file?

If I record a script that opens transaction VK11 and put the right constants in right places places, how shall I call it to open an excel-file and then pick information from cells A1(customer number) B1(product number) C1(price) and then save it and then continue picking rows from excel until blank comes ahead?

Could someone please give me a example of this code?

Thanks in advance!

D