File Extension Library

.A20 File Extension

  • Developer by: ARJ Software, Inc.
  • Category: Archive and compressed Files

What is an .A20 file?

.A20 file extension is created by ARJ Software, Inc.. .A20 has been classified as Archive and compressed Files.

.A20 is Split Multi-volume ARJ compressed file archive (part 22)

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.



How to open:

The a20 (e.g. Avatar.a20 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.

How to Open .A20 file on different platforms

Open .A20 File on Windows

  • Right-click a .A20
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .A20 file and Select check box "Always use this app to open .A20 files" Press "Ok"

Open .A20 File on Mac

  • Right-click (or Ctrl + Left-click) the .A20 file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .A20 File on Linux

Right click on the .A20 file, choose "Open with" and select a program from the list above

Open .A20 File on iPhone

Select a file. If you don't see an application to open the .A20 file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .A20 File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .A20 files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .A20 files

  1. You need to update the application that you normally use to open .A20 files. Only the latest version of the software supports the current .A20 file format
  2. You need to check the .A20 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)