How to Open A01 File in Windows, MAC and online

Split Multi-volume ARJ compressed archive (part 3) definition and 3 other types and linked programs information.


The file extension a01 is used by the following type(s):


Default file extension for .a01 type: Split Multi-volume ARJ compressed files archive (part 3)

The A01 file extension is associated with ARJ, once very popular archiving program for MS-DOS. An *.a01 file is one part of a multi-volume compressed ARJ archive.

ARJ file extension is used for the native format of ARJ archiver. ARJ is a file archiver that compresses files into a disk space saving archive. It is fast, reliable, and has a rich set of features which include Windows 9x, Millenium long filename support, file version management, data damage protection, ANSI escape sequence display handler, configurable command options, multiple volume archives (archives that span diskettes) and much more.

Some ARJ files can be parts of a multi-volume sequences. In ARJ you can split a huge archive to a few smaller files, which are called volumes.

ARJ archiver does use the following sequence:

  • .arj for first volume
  • .a00, a01, a02 …. etc. for any additional volumes

In order to unpack the multi-volume ARJ archive, you need to place ALL of the split parts in the same directory and start extraction of the first volume (.arj). The program will automatically use all of the parts to extract the content of the archive.

Programs that open a01 files:

  • 7-zip (Microsoft Windows)
  • ARJ (MS-DOS)
  • ARJ32 (Windows)
  • WinRAR
  • WinZip
  • ZipZag


Archive Segment (part 1)

Some programs are distributed as segmented archives. Some of these use this extension with an associated .EXE file that you run to combine the segments to get the full archive.


Split Multi-volume ALZip compressed files archive (part 3)

The A01 file suffix is associated with the ALZip. It is one part of a multi-volume compressed ALZ archive.

Programs that open a01 files:

  • ALZip (Windows)