The file you attached contains a folder with an assembly file and some parts. However there are a lot of parts that belong in the assembly that are missing. Do you need to be able to open all of the parts, or just certain ones?
I think I need all of them to be converted.
Here is the entire assembly as an IGES file. The following part files are missing:
Aircraft_Assembled_Blue.zip 6.3 MB
What you uploaded works in in ANSYS. That's exactly what need. I Thank you very much!!