How does one save and re-open a flow.


This is certainly a newbie question, but I cannot figure out how to save and restore a flow.

I am using h2o flow on my local computer, both server and browser. v3.38.0.3.
Windows 10, Chrome browser.

I can save a flow, and certainly something is being saved since if I try to save again with the same name, I get prompted to overwrite.

However when I try to open a flow, I get a file open dialog, and cannot find a file to open. I have searched my entire disk for a file with the name I used, or even created at the time I saved the flow, and there is just nothing.

So, how does one do this?