Hey there, curious about what format does 3D viewer support? Whether you're a 3D artist, designer, or simply interested in exploring 3D models, it's important to know the file formats supported by 3D viewers. Here are some of the most common file formats supported by 3D viewers:

1. OBJ: This is a standard 3D model format that contains geometry, texture information, and other data. Many 3D viewers support the OBJ format, making it a popular choice for sharing and viewing 3D models.

2. STL: STL files are used for 3D printing and are also supported by many 3D viewers. If you work with 3D printers or want to view 3D models in this format, you'll be glad to know that most 3D viewers support STL files.

3. FBX: Developed by Autodesk, the FBX format is widely used in the entertainment industry for modeling, animation, and rendering. Many 3D viewers support FBX files, making it easy to view and interact with complex 3D scenes.

4. GLB/GLTF: These are two closely related file formats that are designed for efficient transmission of 3D scenes. GLTF is a popular open standard for 3D models and is supported by many 3D viewers for web and mobile platforms.

5. PLY: PLY (Polygon File Format) is used to store 3D data, and it is supported by several 3D viewer applications. If you work with point cloud data or need to view 3D models in PLY format, you'll find that many 3D viewers support this file type.

6. Collada (DAE): Developed by the Khronos Group, the Collada format is designed for exchanging digital assets between various graphics software applications. Many 3D viewers support the Collada format, making it easy to view and share 3D models across different platforms.

These are just a few examples of the formats supported by 3D viewers. In addition to these, many 3D viewers also support other popular formats such as 3DS, DXF, and more. When choosing a 3D viewer for your projects, it's important to consider the file formats you'll be working with and ensure that the viewer supports your preferred format. With the right 3D viewer, you can easily explore, analyze, and share your 3D models in the format that works best for you. Happy viewing!