Plattar supports GLTF and GLB format file for 3D & web AR. They allow accurate real-world scale and use across 3D Viewers, Configurator and web AR.
Please export as a gLTF with the bin file and textures all contained within a zip folder.
You upload the zip folder
Within the zip folder are the gltf , bin and texture files
GLB has the textures in binary format so you just need to zip the file and upload.