An AJP file .ajp changes meaning depending on its creator, usually showing up as a CCTV/DVR backup where the device saves video in a proprietary container that standard viewers can’t decode, generated after selecting a camera and date/time for export to USB/CD/DVD, and typically relying on a companion viewer such as a Backup Player or AJP Player to view and sometimes convert the footage.

If an AJP doesn’t come from a DVR or camera system, it may be associated with older software like Anfy Applet Generator or CAD/CAM processes such as Alphacam, meaning it isn’t video, and the easiest way to identify which type it is involves looking at size and folder context—CCTV AJP files are commonly very big and may be accompanied by a viewer program, while project-oriented AJP files are relatively modest and appear with web or CAD materials, and checking Properties or doing a non-destructive text-editor peek can differentiate readable project text from binary DVR data.

Here is more in regards to AJP file extension check out the web site. 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 the AJP came without a viewer, the next logical step is to determine the DVR/NVR model and install the vendor’s CMS/VMS/backup viewer, since many systems decode AJP only through their own PC client; once set up, open the client itself and load the AJP via its Open/Playback/Local File feature, and if playback works but exporting doesn’t, your final fallback is to record the footage from the screen, which introduces quality loss but can be necessary for older or locked-down formats.

If the AJP didn’t originate from surveillance equipment, it might be used by outdated animation tools or CAD/CAM software, meaning it requires the original application to open it, so check the surrounding folder for hints such as project-related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 want, you can share the file size and a few filenames from the same folder as the AJP—or even provide a quick screenshot—and with that information I can usually determine whether it’s surveillance footage and suggest the most likely viewer/player that will open it.