I tried to import a 3d object into Masematica.
However, it stopped advancing from the running screen.
Other 3d object files could be imported.
If the file size is too large, can it not be imported?
Attached files that could not be imported.
I am able to reproduce the crash when I drag and drop it into a new empty notebook. However, it works fine if I open a new empty notebook, evaluate 1+1, and then drag and drop. I will report this on the Wolfram Redmine bug tracker.
The Import works fine. It is ToElementMesh that seems to hang. I tried to abort evaluation after about 5 minutes and that did not work. I had to manually kill the kernel process. You should report this problem to Wolfram Support.