Thank you all for your feedback!
suppose I have an excel with 30 columns, and the header is on row 10.
So if I understand you correctly, this is what to do:
Set a CellRow variable to 11
Perform 30 x Cell_read to get all the values of row 11
Append a record with those values to the recordlist
Increase the CellRow variable with 1 and start reading (30 x ) the values of row 12
etc.