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What is a .mbk file?

A .mbk file is a STOS Memory Bank. This one is a specialist format without an obvious everyday home.

How to open a .mbk file

  • The program that created it is by far the most reliable way to open it.
  • On Windows, use a hex viewer or the free TrID tool to identify what the file really is.
  • On Mac or Linux, running `file yourfile` in the terminal identifies most formats instantly.

The registry records this extension against STOS Memory Bank, so software from that family is the most likely match.

How to convert a .mbk file

  • Identify the file first, then look for an export or Save As option in whatever program can read it.

The technical record

For archivists, developers and the merely curious: these are the PRONOM registry entries for .mbk.

Format nameVersionMIME typePUID
STOS Memory Bankโ€”โ€”fmt/1467

Got another one?