The Department of Education files delivered to your SAIG mailbox monthly may be uploaded in the format they are received. Examples would be dslf22op.dat for Direct Loans, pgrc22op.dat for Pell grants and thsm22op.dat for Teach grants. These files do not need to be altered as long as they remain in the same format they are received in the school's SAID mailbox. The SIS files will need to be in the following format: File Requirements