.ar file: how to open it on Windows

3 Windows apps register the .ar extension. Install one of them to open the file with a double-click.

About the format

Format

AR archive

MIME type

application/x-archive

Format data: freedesktop.org shared-mime-info and PRONOM (The National Archives, UK).

• 
  7-Zip ZS

  File archiver with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard

  Open source 26.02-v1.5.7-R2 2.7M ↓ ★ 7.5K
• 
  7-Zip ZS Non Darkmode

  File archiver with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard

  Open source 26.02-v1.5.7-R2 ★ 7.5K
• 3
  360 Zip

  Free, security, high-speed compression software

  Free 1.0.0.1041

Related guide: Change the default app for a file type in Windows