Massive Axure Team file size

I have a team files that are not too large in terms of content but the file size is over 5gb. Don’t know what exactly caused that. I have another file with a similar problem.

When I export the file as the non-teams, file size is only 75Mb.

Any idea what’s happening?

Can someone follow up on this. I have a file that when I download the version history, the file is 250mb, but when it’s a team file on my local, it’s 1.3gb.