If the assembly files had been saved as part .stp file, then I think it might not be easy to convert it into assembly. I'm not sure how easy it will be to separate each body as single part and assemble them. May be macro gurus can help you.
What a mess!!! Regardless of whatever direction you take I think it is going to be tedious.
You can create a drawing (with no format border) of the assembly and show a section view of the assembly that depicts the most parts
or create as many sections as possible. Save it off as an Autocad drawing or dxf.
Create a new part with just planes and axis. Pick a plane then select File>Insert>DXF/DWG
Then start creating one of the parts deleting everytinh but the part you are creating. At this point
you are in sketcher just deleting lines and arcs.
Once you have your part outline use the contour select tool to create your geometry. You will have to repeat this
for all of your parts. Told you it was tedious!!!
If the Solid Bodies folder shows all the bodies, those bodies can be saved, and an assy created.
Just going from memory....
Right-click the Solid Bodies folder
Select Save Bodies
An option to create an assy should be available
Try to use 'Import multiple bodies as parts' options in Import Options. This won't restore original assembly structure, but you'll get individual parts in an assembly file?
Hope this helps.
I can't find this command. Where is it?
Go to 'File Open' dialog, select 'STEP AP203/214' item in the file types list.
'Options...' button should appear. Click it and you'll see 'Import Options' dialog with 'Import multiple bodies as parts' checkbox.
Does it make sense now?
Yeah, it makes sense now. I have done this in the past though it has been a while.
I forgot that was there.