Can you import an XYZ text file

Can you import an XYZ text file and create a digital terrain model?

Beyond that, extensions can be written to import any kind of data.

Current extensions for point importing:
http://extensions.sketchup.com/en/search/site/point

This plugin by Didier Bur does just that.

Cloud v8.0bxx by Didier Bur / Updated by TIG — SketchUcation PluginStore