Model data created in VRoid Studio can be uploaded directly from VRoid Studio to VRoid Hub without the need to generate a VRM file.
▼ Generating a VRM file in VRoid Studio
When you create a character in VRoid Studio, click the "Export" button on the right side of "Camera / Exporter" to generate a ".vrm" file that can be uploaded to VRoid Hub.
* Note that you cannot generate a ".vrm" format simply by selecting "File" > "Save/Save As".
▼ Creating VRM files with other services
If you use 3D modeling software other than VRoid Studio, you need to use Unity and UniVRM. to create VRM files.
See this page for more information.