Viewer Size for Artstation

[Spicy Dracula]

How can I decrease the file size when exporting a mview file. Mine keep coming out as 87mb which is too much for artstation.

[Andreicus]

The size depends on the overall complexity of the mesh so triangles count, textures size ( 2k, 4k etc. ), number of materials and so on.
87 mb is a lot, i recently made a 30k tris object ( low poly+bake from high poly ) with 2 materials with 4k textures and the final size is 14 mb.

You should try to reduce the texture resolution when saving with the viewer file format and also turn off lossless normal maps option, if it is still high i think that you should make a low poly mesh.