Is it possible to export flowlab games as a swf file?

Not important, but would like to know, thanks in advance!

Unfortunately I do not know. Although an interesting question, what would you use it for then?

Uploading game to other websites like kongregate or newgrounds

I believe is a Cloud engine built using Objective-C in Shockwave Flash.
You can only grab the Embed code, because everything is stored in the cloud.