HOW will anyone open Solidworks 2011 files in Older version?

I wanted to save solid works 2011 files , such that it can be opened in Solid works 2008, without loosing its features data like fillet , and other features
4 Answers

No, SolidWorks is not backwards compatible. Once a file has been saved in SolidWorks 2011, it cannot be opened in SolidWorks 2010 unless it is exported as a neutral file (i.e. Parasolid). Note that when importing a neutral file all feature data history is NOT included.

Im sorry to say that i do not think that is possible in Solidworks. Only option is by making a Iges or step file. But then you will loose all features.