Files with a10 extension are used for ARJ software. It is an archive file format.

There is one other file type using
the A10 file extension!

empty icon.a10 - Split Multi-volume ALZip compressed file archive (part 12)

Detailed description

Software that open a10 file

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A10 file extension - Split Multi-volume ARJ compressed file archive (part 12)

What is a10 file? How to open a10 files?

File type specification:

Archive and compressed file type icon Archive and compressed file type

a10 file icon: a10 filetype icon

The a10 file extension is associated with ARJ. Its one part of a multi-volume compressed ARJ archive.

ARJ is 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.


Updated: April 6, 2024

The default software associated to open a10 file:

ARJ icon

ARJ Software, Inc. logoARJ  Microsoft MS-DOS software

Company or developer:
ARJ Software, Inc.

ARJ is popular file archiver for MS-DOS operating system used to compress data and save disk space. It runs on most PCs from the IBM PC XT to Pentium IIIs and is compatible from version 1.0 to present.

Help how to open:

The a10 (e.g. Avatar.a10 file) file is only one part of ARJ multi-volume archive. If you want to extract this file, you must have all parts of the ARJ multi-volume archive. Open the first part of ARJ (e.g Avatar.arj file) multi-volume archive in ARJ application and extract files from ARJ multi-volume archive.

How to convert:

It is not possible to convert only one part of ARJ multi-volume archive. Only complete ARJ archive can be converted in to another archive or compression format. The easiest way how to convert complete ARJ multi-volume archive is to decompress the ARJ archive with the use of ARJ or any other supported archiver and repack the content with another compression or archive application of your choice.

Related links:

ARJ official website

ARJ open project website

List of software applications associated to the .a10 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open a10 file, edit a10 file, convert a10 file, view a10 file, play a10 file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting a10 files.

Software that open a10 file - Split Multi-volume ARJ compressed file archive (part 12)

Programs supporting the exension a10 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open a10 file action.

Microsoft Windows:

Microsoft MS-DOS:

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