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Split Multi-volume ARJ compressed file archive (part 3)
File type: Archive and compressed file
An a01 file extension is related to ARJ archiving utility for MS-DOS and Microsoft Windows operating systems. An a01 file stores one part of a multi-volume ARJ archive.
Found 2 different file type records with the same a01 filename suffix.
File type category:
Archive and compressed file
Date updated: July 25, 2025
The a01 file extension is associated with ARJ, a once very popular archiving program for MS-DOS.
The a01 file is one part of a multi-volume compressed ARJ archive. The arj is used for the native format of the ARJ archiver.
ARJ is a file archiver that compresses files into a disk space-saving archive. It is fast, reliable, and features a rich set of capabilities, including support for Windows 9x, Millennium long filenames, file version management, data damage protection, an ANSI escape sequence display handler, configurable command options, multiple volume archives (archives that span diskettes), and more.
Some ARJ files can be parts of a multi-volume sequence. In ARJ, you can split a large archive into several smaller files, known as volumes.
ARJ archiver does use the following sequence:
To unpack the multi-volume ARJ archive, place all the split parts in the same directory and start extracting the first volume (.arj). The program will automatically use all of the parts to extract the content of the archive.
An a01 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 (arj file) multi-volume archive in ARJ application and extract files from ARJ multi-volume archive.
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.
Software applications that can open a01 files:
Apple macOS / Mac OS X
Microsoft MS-DOS
Software apps that extract a01 files:
Apple macOS / Mac OS X
Microsoft MS-DOS
File type category:
Archive and compressed file
Date updated: November 25, 2010
The A01 file suffix is associated with the ALZip. It is one part of a multi-volume compressed alz archive.
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