Opening CPIO Files

The CPIO file type is primarily associated with GNU cpio.

CPIOFile Extension CPIO
 File extension: CPIO
File type:  archive file

What is a CPIO file?

CPIO files mostly belong to GNU cpio. CPIO files are archive files used primarily in Unix systems.
This format collects several files along with their metadata such as file permissions, ownership, and timestamps. It is managed by the GNU cpio tool, which is commonly used to back up or restore Unix file trees and is also integrated into system boot processes like initramfs.
Key details provided by FilExt.com include:
  • Archive storage: Bundles files and metadata in a sequential layout.
  • Unix utility: Designed for use in Unix-like environments for backup and recovery.
  • Extraction and creation: Typically handled via command-line tools (e.g., using the command 'cpio -idmv' on Unix) and can also be opened with multi-format extraction tools like 7-Zip on Windows.
    • FilExt.com tip: For more technical details, visit the GNU cpio webpage.

    How to open CPIO files

    You need a suitable software like GNU cpio to open a CPIO file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CPIO file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CPIO file directly in the browser:. Just drag the file onto this browser window and drop it.

    Online CPIO File Viewer

    Choose your .cpio file to view
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    How to extract texts from CPIO files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

    You can extract texts from CPIO file or capture a preview screenshot using our online CPIO file viewer:
    1. Just click the "Choose your .cpio file to view" button on this page.
    2. After your file is opened in browser,
    3. click "Save as..." in the menu.
    4. Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
    5. Your file will be converted and downloaded.

    Programs that open and convert CPIO files:

    1. GNU cpio
      See the previous paragraphs to learn more about the main application. CPIO files are often referred to as GNU cpio backups because this type of file is primarily created or used by this software.
    2. UNIX CPIO Archive
      RPM files consist of metadata concatenated with (usually) a cpio archive. Newer RPM systems also support other archives, as cpio is getting obsolete. The Mime types used with this association are: application/x-cpio. The identifying characters used for this association are - Hex: 30 37 30 37 30, ASCII: 07070. This file format is classified as Archive. Related links: GNU CPIO, Unpack with 7-Zip

    Technical Data for CPIO File Extension

    File classification:
    Backup
    Identifier:
    Hex: 30 37 30 37 30, ASCII: 07070 (provided by TrID database)
    Related files:
    cipo, gz, zip, sign, dpa, xxl, tar, rar, 7z, iso
    Related links:
    GNU CPIO, Unpack with 7-Zip
    Mime type:
    application/x-cpio

    The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

    ProgramID: 7-Zip.cpio
    EXEFile: %ProgramFiles%\7-Zip\7zFMn.exe %1
    ProgramID: IZArc
    EXEFile: %ProgramFiles%\IZARC\IZARC.EXE %1
    ProgramID: 7-Zip.cpio
    EXEFile: %ProgramFiles%\7-Zip\7zFM.exe %1
    ProgramID: mks_vpax
    EXEFile: vpax.exe \%1\ %*
    ProgramID: MimarSinan Codex
    EXEFile: %SystemRoot%\explorer.exe /idlist,%I,%L
    ProgramID: IZArcCPIO
    EXEFile: %ProgramFiles%\IZArc\IZArc.exe
    ProgramID: CPIO
    EXEFile: %ProgramFiles%\PeaZip\PEAZIP.EXE
    ProgramID: IZArcCPIO
    EXEFile: %ProgramFiles%\IZArc\IZArc.exe
    ProgramID: mks_vpax
    EXEFile: vpax.exe %*
    ProgramID: 7-Zip.cpio
    EXEFile: %ProgramFiles%\Utilities\7-Zip\7zFM.exe
    Show all 10 listingsTo Top

    a cpio archive file is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with CPIO files

    • Associate the CPIO file extension with the correct application.
    • Update your software that should actually open archive files. Because only the current version supports the latest CPIO file format. Search, therefore, e.g. on the manufacturer website after an available GNU cpio update.
    • To make sure that your CPIO file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
    • Click here to open your .CPIO file online - secure, fast, and no downloads needed.
    Drop here
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    CPIO file viewer CPIO file description