Extract text from 3D model files (SMOOTH)
To convert SMOOTH 3D models to another format, you need Blender or other 3D software.
To convert other file formats to the "Proprietary 3D Mesh File" file type, you need software like Blender or a similar tool.
The .SMOOTH file format is a specialized data container primarily used in niche 3D modeling and animation workflows. It typically stores complex polygon mesh data, focusing heavily on surface smoothing algorithms, vertex normals, and subdivision surface instructions. Because it is highly specialized, these files are usually generated by custom scripts, proprietary engines, or niche plugins within major 3D suites like Autodesk Maya or Blender. There is no native support for this extension in standard operating systems like Windows or macOS.
The biggest disadvantage of the .SMOOTH format is its closed, undocumented nature. It lacks universal compatibility, meaning you cannot preview it in standard 3D viewers, game engines, or web browsers. If you receive a .SMOOTH file from a freelancer or as part of a legacy project, it is essentially a "black box" unless you have the exact originating software and plugin version installed. This lock-in is frustrating and often forces users to hunt down specific environments or pay for expensive software subscriptions just to view their own 3D models.
To make the geometry usable in modern pipelines, you must convert the file to industry-standard 3D formats. The best conversion targets are OBJ for simple static meshes, FBX if animation or rigging data might be embedded, or STL if the final goal is 3D printing. Keep in mind that converting away from a proprietary smoothing format may "bake" the smoothing algorithms directly into the geometry, which increases the overall polygon count but guarantees the model looks identical in other software.
Standard online 3D converters frequently fail to process .SMOOTH files because they lack the specific decoders required for these undocumented mesh structures. Often, only the original software can properly read or export the parametric data. Our system will inspect the file's internal hex structure and show any embedded text or structural content. If our analysis detects a supported underlying or embedded mesh format, viewing or conversion may still be seamlessly possible.
Convert.Guru analyzes your SMOOTH file, detects the exact format, and lets you read the text inside.
Users also converted MARKER, BITMAP and 3A files.
If you want to convert SMOOTH file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Blender or similar software from the "3D Mesh Smoothing Data" 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 SMOOTH, try Blender or another comparable tool in the "3D Mesh Smoothing 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 SMOOTH converter.