*.stl

[cesarbarraza]

i need use letters in 3d
but i can open file *.stl
can you help me?

[okh]

Not sure what you mean by letters, but .stl files (like the ones used for 3D printing), do not open directly in SH3D.

To convert them (to .obj format), you can use 3D modelling software like Blender. The 3D software included in Win 10 (3D modeller or something) will also let you import .stl and export .obj.

ok

[Puybaret]

Note also that version 5 lets you create 3D texts easily.