Migrating/sharing a single level

How do you migrate/share a single level out of a project?

I’ve got a project with multiple levels, like 50 or so different levels.

I need to give someone in my team a level to look at and work with but don’t want to copy massive amounts of data in the process and only need to give them one specific level and the assets associated. How do I do this?

Otherwise I need to give them the entire project which is a MASSIVE amount of data.

Would really appreciate some help