Sia extension is related to Nevercenter Silo 3D files. You can open sia file formats with Silo 3d software.
Silo 3D is a modelling and visualization software. The projects which designed by Silo 3d software get sia or sib extensions. You have chance to get detailed information from its official web page. Besides, you can download free trial version from the following link.
What to use SIA
which page related to SIA file
SIA Related Searches
You can check related links about SIA fileextension.