I have a problem. I try to open a step file in sw 2015 and I get an empty file. I have checked the path for Default templates in Options and it's ok. Also File location are correct set. I tried to open this file in 3D Tool and it works but in sw 2015 don't. I get also a message like:"Possible case of missing or corrupted template". But my assembly, part and drawing templates in sw 2015 are ok. Maybe I need a template from an old version of SW?