An AJP file using the .ajp extension varies in meaning because different systems may generate it, though it’s most often a CCTV/DVR export where video is stored in a proprietary format that regular players can’t handle, created when someone exports a chosen camera and time span to USB or disc, usually accompanied by a special viewer such as a Backup Player / AJP Player that can open the footage and sometimes re-export it.
If an AJP file didn’t originate from DVR footage, it may belong to old software like Anfy Applet Generator or CAD/CAM applications such as Alphacam, so it’s not video, and you can usually pinpoint the type by looking at file size and folder structure—CCTV AJPs are typically huge, often accompanied by viewer programs, whereas project-style AJPs are more compact and stored next to web or CAD resources, and by checking Properties or safely viewing it in a text editor, readable text hints at a project/config file while mostly unreadable symbols indicate a binary DVR container.
To open an .AJP file, the correct method varies based on the software or device that created it, since Windows and common media players can’t automatically detect the proper format, and if the file came from a CCTV/DVR export, the most reliable option is to use the matching viewer/player that accompanies that DVR system, typically found in the same USB/CD/DVD/folder as the AJP and named something like Player.exe, BackupPlayer.exe, or AJPPlayer.exe, which you can run to load the file and then use its own export or convert feature to produce a standard MP4 or AVI.
If no viewer is bundled, the next step is to check the DVR/NVR brand and model—or at least the software used for live viewing—and download the official CMS/VMS/backup viewer from that vendor, since many CCTV systems rely on their own PC client to decode AJP files, and once installed you should open the client first, use its Open/Playback/Local File option to load the AJP, and if it plays but offers no export feature, the final fallback is to screen-record the footage full screen, which reduces quality but can be necessary for older locked formats.
For more information on universal AJP file viewer take a look at our website. If the AJP file doesn’t trace back to a DVR, it may represent older animation/app-creation tools or CAD/CAM workflows, requiring the same program that made it, so look around its folder for identifying app names, documentation, or related file types like DXF/DWG, then open it inside the correct software, noting that file size can guide you—tiny files usually mean project/config content, while huge ones are often CCTV backups.
If you want quicker identification, just share the size and a few folder filenames (or a screenshot), and I can usually detect if it’s CCTV footage and guide you to the right viewer/player.
