https://forums.autodesk.com/t5/inventor-forum/can-t-open-cgr-file-in-inventor/m-p/5779700#M363785 <BLOCKQUOTE><HR />@Anonymous wrote:<BR /> <P>It's not possible to send cgr-files here,&nbsp;</P> <P>Kind Regards</P> <P>Alex</P> <HR /></BLOCKQUOTE> <P>Simply zip the cgr file up and post it here..</P> <P>&nbsp;</P> <P>uploading step files or any other format thats not cgr (zipped) is useless..&nbsp;</P> <P>&nbsp;</P> <P>Also note that Inventor cannot open native cad files if the version is the same or newer than Inventor..</P> <P>Example.. Inventor 2015 can open solidworks 2014 and older files but cannot open Solidworks&nbsp;2015 files.</P> <P>&nbsp;</P> <P>The easiest solution is to simply request step files instead of native cad files from any program.. Then you never have this problem</P> <P>&nbsp;</P> Thu, 20 Aug 2015 12:39:52 GMT mcgyvr 2015-08-20T12:39:52Z