AVB can represent different things based on what environment it appears in, and for the .AVB extension the usual meaning is an Avid Bin used by Avid Media Composer to hold metadata about clips, subclips, sequences, and markers while the actual media sits elsewhere like in `Avid MediaFiles\MXF`; this bin isn’t meant to be opened with normal tools and must be loaded inside Avid, where offline items usually signal missing media rather than a broken bin, while other uses of "AVB" in networking or Android security don’t refer to openable files at all.
In professional audio/video and certain automotive Ethernet contexts, AVB commonly signals Audio Video Bridging, an IEEE standard that provides synchronized, bandwidth-reserved streaming over Ethernet rather than defining any file; in Android modding circles, AVB generally means Android Verified Boot, checking partitions during boot with components like `vbmeta`, and a small number of older programs once used `.avb` for Microsoft Comic Chat Character files when not derived from Avid.

How an AVB file is opened depends on the AVB definition relevant to you, but for Avid Bin files (.avb), the correct method is to launch Avid Media Composer, load the right project, and open the bin inside Avid, where its items display as part of the project; Media Offline almost always means missing or unlinked `Avid MediaFiles\MXF` rather than a damaged bin, so reconnection or relinking is the fix, and bin corruption is often resolved by restoring a recent backup from Avid Attic.
If your "AVB" refers to Audio Video Bridging networking, there won’t be a desktop file you
double-click because AVB describes Ethernet timing/streaming standards, meaning you configure AVB-capable hardware, switches, and drivers rather than open an AVB document; if your "AVB" comes from Android Verified Boot, "opening" instead involves firmware images and verification data like `vbmeta` that you inspect with developer tools, and if the `.avb` is the rare Microsoft Comic Chat Character type, you’d need original Microsoft software or a legacy viewer since modern systems don’t support it.
An Avid Bin (`.avb`) is solely a metadata repository, holding details about clips, sequences, timecode ranges, and markers, with the heavy lifting done by MXF media stored elsewhere such as in `Avid MediaFiles\MXF\... Should you have just about any questions regarding exactly where as well as the best way to work with
AVB file windows, you'll be able to email us from our own web page. `; copying only the `.avb` moves the edit schema but not the actual video/audio, so Avid will open the bin but show Media Offline until the proper media is available or relinked, and this division keeps bins lightweight and share-ready—so an `.avb` by itself cannot "play" without its media or another exported file.