LanguageA11
Split Multi-volume ARJ compressed file archive (part 13)
File type: Archive and compressed file
Files with a11 extension are used for ARJ software. It is an archive file format.
Found 2 different file type records with the same a11 filename suffix.
What is a11 file?
File type category:
Archive and compressed file
Date updated: July 19, 2025
The a11 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.
How to open a11 file?
The a11 (e.g. Avatar.a11 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 a11 file?
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.
Suggested software to open a11 file:
Associated software actions with the a11 file
Software applications that can open a11 files:
ARJ32 (Microsoft Windows)
WinRAR (Microsoft Windows)
WinZip (Microsoft Windows)
7-zip (Microsoft Windows)
ZipZag (Microsoft Windows)
ARJ (Microsoft MS-DOS)
Software apps that create a11 files:
ARJ32 (Microsoft Windows)
ARJ (Microsoft MS-DOS)
Software apps that extract a11 files:
ARJ32 (Microsoft Windows)
WinRAR (Microsoft Windows)
WinZip (Microsoft Windows)
7-zip (Microsoft Windows)
ZipZag (Microsoft Windows)
ARJ (Microsoft MS-DOS)
AOL Instant Messenger graphic file
File type category:
Miscellaneous file
Date updated: May 10, 2010
The a11 file extension is associated with AOL Instant Messenger.
Mime: application/a11
Mime: application/x-a11
Mime: image/a11
Mime: image/x-a11
Suggested software to open a11 file:
Associated software actions with the a11 file
Software applications that handle other tasks involving a11 files:
AOL Instant Messenger (AIM) (Microsoft Windows)