The File Extensions Database

.CPIO File Extension

  • Category: Encoded Files
  • Format: Binary

What is an .CPIO file?

.CPIO is Unix CPIO Archive

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.

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.

Programs that open Unix CPIO Archive
File Viewer Plus
Apache Commons Compress
Apple Archive Utility
Incredible Bee Archiver
Apache Commons Compress
The Unarchiver
GNU cpio
Apache Commons Compress

How to solve problems with CPIO files

  • Associate the CPIO file extension with the correct application. On :
    Windows: Right click on any CPIO file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.CPIO files". Mac: Right click (or Ctrl-click) the CPIO file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .CPIO is Unix CPIO Archive. Because only the current version supports the latest CPIO file format. Search, therefore, e.g. on the N/A manufacturer website after an available .CPIO is Unix CPIO Archive update.
  • To make sure that your CPIO file is not corrupted or virus-infected, get the file again and scan it with antivirus software.