OCLC “zips” (compresses) files of MARC records 7 days after they are made available for download. Compressed files are given the .zip extension but retain their original file name.
Follow the steps below to extract the MARC file from the Zipped one through a built-in utility in Windows:
You may also use a free utility such as 7-Zip to unzip your downloaded files.
See File retention
You may also access files available to you for download through WorldShare My Files or through FileX. Contact OCLC Support to obtain your FileX password. You may prefer to use a free utility such as FileZilla for accessing your FileX account.