What entities can Skimp import?

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Skimp is designed to import only polygon entities (faces), and their associated materials.

However, in version 2.0, we added the ability to import standalone edges not attached to faces when importing SKP files.

Skimp is intended to be a tool that allows you to quickly bring in high-poly meshes from various file formats into SketchUp.  It is not designed to be a full-fledged file-format conversion tool. 

Items such as poly-lines, layers, cameras, animation properties, and meta-data are not supported for import using Skimp.