A daily updated filename extension database!

Details of the .a01 file extension

The table below provides useful information about the .a01 file extension. It answers questions such as:

  • What is the .a01 file?
  • What program do I need to open a .a01 file?
  • How can the .a01 file be opened, edited or printed?
  • Where can I find the specifications for .a01?
  • Which MIME-type is associated with the .a01 extension?
  • How can I convert .a01 files to another format?
  • What are other, similar filename extensions to .a01?

We hope you find this page helpful and a valuable resource!

0 extension(s) and 1 alias(es) found in database

.arj file extension details

ARJ Compressed Archive

ARJ Compressed Archive .arj file icon
ARJ file is an ARJ Compressed Archive. It is the native format of ARJ (dos) and WinARJ archiver. Like other archives, ARJ files are data containers, they store one or several files in the compressed form.
ARJ format description not yet available
Category: Archive files
Application: WinARJ
Mime-type: application/x-arj-compressed
Magic number: -
Magic string: -
Sample: -
ARJ aliases:
a00, a01, a02, a03, a04, a05, a06, a07, a08, a09, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20, a21, a22, a23, a24
ARJ related links:
ARJ related extensions:
LH ARC Compressed Archive

Compressed Microsoft Cabinet File

Gzip Compressed File

LH ARC Archive

StuffIt Expander Archive

Tape Archive

Gzipped Tape Archive

Compressed File

ZIP Archive

Zoo Compressed Archive

Other types of files may also use the .a01 file extension.

.a01 file extension error

The .a01 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:


Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

ARJ Compressed Archive
WinZip First Split Zip
Yamaha SY Series Sample
open .a01 file

Can't open a .a01 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .a01 file association, check the FAQ.

.a01 file extension

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .a01 file extension, write to us!

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