There should be no reason for explode not working. Having said that you don't need to Import .skp files, just open them.
Create new/Open from My device

From 8ish years ago.
https://community.sketchucation.com/topic/151651/vectary-ultimate-3d-tool

@alsomar Click your Avatar, top right and choose Edit Profile then scroll down to Signature and then to save changes.

How do we get rid of pointless AI posts that are always thrown in your face as New Posts or Recent posts when you know they are irrelevant gibberish that should be deleted but they are so resource intensive that you can't even click on them to ignore them. It was 28 pages...

I'm also finding this message somewhat tempting at the same time as disturbing. Must be one drink away from something either way.

@Rich-O-Brien
Sketchucation test file.skp

Yep, both options, drag and drop and upload icon are available now.
Cheers.