FLB2 Input file processing user exit

Hi,

Is there an user exit/BADI which can be used to manipulate the BAI2 file being uploaded by the user? We are facing an issue with the number of records being uploaded. User's generally upload files having more than 1000 records. Our approach would be to split the number of records to 950 each and process the FLB2 transaction. So I am looking for a file splitter exit which will be called before the actual FLB2 processing takes place.

Any help regarding this will be highly appreciated.

Thanks and regards