I’m quite new to SketchUp (Make 2017). Two weeks ago I started drawing my appartment and it became approx. 1 MB. Today, I imported some pre-drawn objects from the “3D Warehouse” and kept on drawing. I noticed it became 22 MB. I wanted to test what made it so big all of a sudden, but even after deleting all imported objects and deleting all self-drawn objects, it still remains 21 MB in size … I already did Edit -> Unhide -> All -> Ctrl-C -> Del -> Ctrl-S but there wasn’t anything hidden. There’s nothing locked either … It just looks empty to me (but I remains that big in MB).
It’s annoying since it slows down everything (on PC and on a viewer on my smartphone), I can’t send it to my architect and I tend to have a lot of versions, so I don’t want them to be too big…
What can I do to search for those MB and gain them back?