sap bpc how generate multiple lines from a flat file

Hi experts.

I need to upload a flat file to a BPC model. The estructure of the flat file is showed in the next image, and I need to generate multiple records in BPC per each line in the flat file.

Example. The line 1 in the flat file should generate the next records in BPC

I reviewed several options in the transformation and convertion file, but I can´t find how I can resolve it.

Thanks a lot