PMA test data file extension guideline:

.pma = (renamed to .cre at destination) the test file will be copied to the PMA drive during the test
.crp = (renamed to .cre at destination) the test file will be copied to the persists folder during the test
.cri = (renamed to .cre at destination) the test file will be copied to the install folder during the test

.txp = (renamed to .txt at destination) the test file will be copied to the PMA drive during the test
.txi = (renamed to .txt at destination) the test file will be copied to the install folder during the test