Archive 12 format is a main archive type for Acronis Backup 12.5. It is used to back up any data, including mobile data, applications, application-aware backup, MacOS, Oracle DB etc

It is a single .tibx file for each backup chain: Full or Differential + all Incremental files that depend on it

Metadata is stored inside the archive, checksummed and verified (there is no separate xml file for metadata).