Open A20 file

The most common choise: Split Multi-volume ARJ compressed file archive (part 22)

How to open Split Multi-volume ARJ compressed file archive (part 22) .a20 files

a20 file icon Have you had trouble opening the a20 file on your computer? What are a20 files? We explain what they are and recommend software that we know will open them.

What is a20 file?

An a20 file extension is related to the ARJ compression tool for MS-DOS and Microsoft Windows operating system. An a20 file stores ARJ compressed file archive part 22.

Split Multi-volume ARJ compressed file archive (part 22) description

The a20 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.



Suggested software to open a20 file


Once very popular file archiver for MS-DOS


A command line version of ARJ archiver

What file extension actually is?

Simply put, file extensions are the characters after the dot in the computer file name, so for example document-name.pdf has file extension „pdf“. This helps Windows to identify which program should be used to open the file.

We can help you to open your file

Our database contains a huge list of different file extensions, usually with detailed description and programs that can be used to open or otherwise work with that particular file type.

Only original software

Every software listed in our database is verified and ve provide link to the developer or to the software own website, which should hopefuly be enough for you to download the most recent version of the program.