Home : File Types : CPIO File

.CPIO File Extension

File TypeUnix CPIO Archive

2.5 (2 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryEncoded Files


This file is saved in a binary format, which requires a specific program to read its contents.

What is a CPIO file?

File archive created in the Unix CPIO (Copy In, Copy Out) format, an uncompressed file container format used for grouping files together; similar to a .TAR archive and can be compressed into a .CPGZ file using Gzip compression.

More Information

The "ditto" BSD utility can be used to create and extract CPIO files. For example, ditto -c creates a CPIO archive. The Java Commons Compress API can also be used for creating and extracting CPIO archives.

Open and view .CPIO files with File Viewer Plus.
Programs that open CPIO files
File Viewer Plus
Apache Commons Compress
Apple Archive Utility
Incredible Bee Archiver
Apache Commons Compress
GNU cpio
Apache Commons Compress
Updated 9/9/2015

.CPIO Extension Information

This page contains information about the file extension CPIO and its known file associations. Our goal is to help you understand what a *.cpio file is and how to open it.

The Unix CPIO Archive file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and do not publish any information we have not verified.

If you would like to suggest any additions or updates to this page, please let us know.