Further reading
US Library of Congress describes preservation of data in digital formats: https://www.loc.gov/preservation/digital/formats/fdd/fdd000464.shtml
SAS white paper about
PROC CPORT
andPROC CIMPORT
Tips and Techniques For Moving Between Operating Environments by J. Meimei Ma and Sandra Schlotzhauer – available here: https://support.sas.com/resources/papers/proceedings/proceedings/sugi23/Begtutor/p56.pdfDocumentation from US CMS dataset from the NCPDP: https://www.cms.gov/Medicare/Billing/ElectronicBillingEDITrans/downloads/NCPDPflatfile.pdf