The most reliable way to play these files is to download the . This official tool is free and available for both Windows and Mac. Operating System Recommended Download Windows Webex Network Recording Player (.msi) Mac OSX Webex Network Recording Player (.dmg) How to Install and Open ARF Files Video Recording, Video Conference Online | Cisco Webex

To open an ARF (Advanced Recording Format) file, you need specialized software because this is a proprietary format created by for network-based meeting recordings. Unlike standard video files, ARF files contain not just video and audio, but also data like participant lists, chat transcripts, and Q&A sessions. Official ARF File Player Download