An AJP file formatted as .ajp may represent several formats, most commonly a CCTV/DVR export storing video in a proprietary format that is incompatible with VLC/WMP, created when someone exports footage from a chosen camera and timeframe to removable media, and usually accompanied by a special viewer like a Backup Player / AJP Player that can open and occasionally convert it.
If the file wasn’t produced by a CCTV system, an AJP may come from legacy tools like Anfy Applet Generator or CAD/CAM utilities like Alphacam, which means it isn’t video, and you can figure out which one you have by inspecting file size and folder neighbors—camera-export AJP files are very bulky and may show up next to player executables, while project-type AJP files are lightweight and appear beside web or CAD items, and checking the file’s Properties or glancing at it in a text editor can reveal readable config-like text for project files versus unreadable binary for DVR exports.
To open an .AJP file, you need a method that reflects how it was generated, since Windows and typical video software won’t recognize it, and if it’s a CCTV/DVR export, your best bet is the viewer/player supplied with the footage—often located in the same folder and named something like Player.exe or BackupPlayer.exe—which you can launch to load the AJP and then use its built-in export/convert tools to save out an MP4 or AVI.
If nothing came with the AJP file, your best move is to determine the DVR/NVR brand or the software normally used for live viewing, then install the vendor’s official CMS/VMS/backup player, because many systems only decode AJP through their own client; after installation, open that client manually and use its Open/Playback/Local File function to load the AJP, and if playback works but export is unavailable, the last workaround is a full-screen screen recording, which is time-consuming but sometimes unavoidable.
If the AJP didn’t originate from surveillance equipment, it might relate to outdated animation tools or CAD/CAM software, meaning it requires the original application to open it, so check the surrounding folder for hints such as project-related filenames, readmes, or CAD formats like DXF/DWG, then install the correct program and open the file through it, noting that smaller sizes usually fit project files while very large sizes resemble CCTV containers.
If you like, simply provide the file size and list a few of the files in the same folder—or share a screenshot—and I can typically identify the CCTV/DVR type and recommend the most likely working player.
