Is there anyway in Autodesk inventor to do a fillet on two assembled edges?

In the pdf I have a simple box assembly, just 4 sides that have a fillet on the tops of each side. But after assembly I would like to fillet down the corners.

For Lindy Hopper

I'm running 2017, but it won't open these sorry. Are these 2018 files?

I'm not sure of this.. just try combine option, that combines two individual or new solids into one and give a try.

Thanks, it worked, I went back draw what I needed as a single part, placed my fillets, then used the intersect extrusion to get the single side I needed that I could then take into my assembly. Don't use the intersect option that much but this was a perfect use for it.