Opening .stp file without "new part/assy" dialogue popping up

When opening a step file of an assy, the new file dialogue opens, so I select new assy, but then the new part dialogue comes up, and I have to select ok for every part in the assy.  Is there a way to not have this happen, as I do not want to click ok 275 times just to open a step file?  Thanks.

Jason Lackey

SolidWorks 2012 x64 Edition

SolidworksImport export