Extract text from NTR files
To convert your NTR file to another format, you need Nitro Studio or other 3D software.
To convert other file formats to the "Game Asset & CAD Exchange" file type, you need software like Nitro Studio or a similar tool.
The .ntr extension is shared by two distinct but highly technical file formats: Nintendo DS game assets and SIGMA ROHR2 engineering data.
For most users, an .ntr file is a proprietary animation or model container from the Nintendo DS (Project Nitro) software development kit. These files - often hidden inside ROMs - store 3D skeletal animation data, textures, or file system structures used by games like Pokemon or Mario Kart. Because they are compiled binary assets designed solely for the Nintendo DS hardware (or emulators like DeSmuME), they cannot be opened by standard 3D editors like Blender or Maya without conversion. Users typically need to convert these to FBX or GLTF to mod games or import assets into modern engines like Unity.
Alternatively, in industrial engineering, an .ntr file is a "Neutral Interface" file generated by SIGMA ROHR2, a specialized tool for pipe stress analysis. These ASCII-based files facilitate data exchange between ROHR2 and plant design systems like AVEVA PDMS or E3D. Engineers often need to convert this data into DXF for CAD drafting, CSV for spreadsheet analysis, or PDF for non-editable archiving.
Convert.Guru analyzes your NTR file, detects the exact format, and lets you read the text inside.
Users also converted NTA, USX, DSF and INN files.
If you want to convert NTR file to , you can use Nitro Studio or similar software from the "3D Animation & Engineering Data" category. In the File menu, look for Save As… or Export….
To convert files to NTR, try Nitro Studio or another comparable tool in the "3D Animation & Engineering Data" category.
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 NTR converter.