Dear Julie The Perl project Catmandu https://metacpan.org/pod/Catmandu is targeted to massage data (including MARC). You can install it with this command on a Linux computer: $ cpanm Catmandu Catmandu::MARC To process your file and strip out all the fields with ‘Faux College’ in the 710a field use this command: $ catmandu convert MARC —type XML to MARC —type XML —fix strip.fix < yourdata.xml with a ‘strip.fix’ Fix script that looks like: do marc_each() if marc_match(“710a”,”Faux College") reject() end end Cheers Patrick