Click the "Select File" button above, and choose your PROJ file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert PROJ to another file type
To convert PROJ project files to another format, you need Prisma3D / Visual Studio or other Developer software.
Convert a file to PROJ
To convert other file formats to the "Multi-App Project Configuration" file type, you need software like Prisma3D / Visual Studio or a similar tool.
About PROJ files
A .proj file acts as a workspace or configuration container, but its exact purpose depends entirely on the software that created it. The most common use cases are 3D modeling projects for Prisma3D and developer build scripts (often using XML or JSON) for Microsoft Visual Studio via the Microsoft Build Engine (MSBuild). Other software, like Unity or DJI drone apps, also occasionally use .proj files to store local application settings.
The primary disadvantage of the .proj format is severe fragmentation. A .proj file from a 3D animation app shares the same extension as a plain text developer script but has completely different internal architecture. Furthermore, Prisma3D project files are highly proprietary. They do not store universal 3D meshes; instead, they store internal coordinates, timelines, and material links. This means you cannot simply import a 3D .proj file into Blender without native exporting. Developer .proj files, while easily readable, require their specific IDEs to actually compile the referenced code.
Standard online converters fail with .proj files because they cannot automatically determine which of the many conflicting formats your specific file uses. Our analyzer will inspect the file headers. If it is an XML, UTF-8, or JSON developer file, we can easily extract the text. If it is a 3D archive, we will attempt to identify the underlying structure so you know exactly which software you need to open it.
Convert.Guru analyzes your PROJ file, detects the exact format, and lets you read the text inside.
If you want to convert PROJ file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Prisma3D / Visual Studio or similar software from the "Application Project Workspace" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to PROJ, try Prisma3D / Visual Studio or another comparable tool in the "Application Project Workspace" category.
The PROJ 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 PROJ converter.