The WARC format generalizes the older ARC format. It supports the archiving needs of organizations better. WARC is an extension of the ARC file format. It adds more metadata to each record. It also allows named headers. This gives more freedom. Software should ignore fields with unrecognized names. A unique ID is assigned to each record. It is globally unique for its period of use. Files with .warc extension combine resources into one file. The resources can be accessed from the file. The Web ARChive format was developed from the ARC Archive format. It improves archiving of web information. One enhancement is capturing metadata on archiving. Windows cannot recognize the .warc file type automatically. It asks to select an app to open WARC files.
Wayback Machine