Click the "Select File" button above, and choose your APJ file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert APJ to another file type
To convert APJ project files to another format, you need Mission Planner or other System software.
Convert a file to APJ
To convert other file formats to the "Firmware Update File" file type, you need software like Mission Planner or a similar tool.
About APJ files
The .apj file extension is primarily used for ArduPilot firmware update files within the ArduPilot open-source drone ecosystem. However, the extension is highly fragmented. It also functions as a proprietary project file format for Anatomage Invivo dental imaging, an XML configuration for B&R Automation Studio, and even an asset file for Lego Digital Designer.
Because .apj is an umbrella extension used by entirely different, specialized applications, it presents severe compatibility challenges. It is highly proprietary in its medical and robotics forms. If you have an Anatomage dental scan, you cannot open it without expensive, niche medical software. The format lacks standard support in web browsers or regular office tools. If you receive an .apj file, you cannot easily tell if it is a plain text JSON drone update or a massive 3D medical X-ray.
Ideally, firmware files should be kept in their original format or renamed to JSON for safe text debugging. Medical or architectural .apj project files must be exported directly from their native software to standard targets like PDF, DICOM, or JPG to be useful to third parties. Data loss is guaranteed if you attempt to force-convert the proprietary medical variants without the original application.
This file format is difficult to open or convert because there is no single structural standard. Often, only the original software can properly read or export the complex data. If our analysis detects a supported underlying or embedded format - such as JSON, XML, or a ZIP archive - viewing or conversion may still be possible.
Convert.Guru analyzes your APJ file, detects the exact format, and lets you read the text inside.
If you want to convert APJ file to DWG, DXF, DGN, RVT, RFA, SKP, 3DM, STEP, IGES, SAT, X_T or X_B, you can use Mission Planner or similar software from the "Firmware and Project Data Storage" category. In the File menu, look for Save As… or Export….
To convert SLDASM, DGN, PRT, IAM, X_B, CATPRODUCT, SLDPRT, RVT, ASM, DWG, CATPART or DXF files to APJ, try Mission Planner or another comparable tool in the "Firmware and Project Data Storage" category.
The APJ Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our APJ converter.