RenderToCubemap. How to save my rendered cubemap?

I've followed the tutorial by Unity for rendering cubemap. It ended successful.
link: https://docs.unity3d.com/ScriptReference/Camera.RenderToCubemap.html (first script)

But... when I reopen my Unity project, cubemap becomes blank as it didn't save the baked cubemap result. Also, after the baking, when I open cubemap in explorer, it's still blank but Unity shows baked cubemap in the game.

I've prepared blank .png picture to be baked as cubemap and placed it in my project. After the successful baking it's still blank but Unity displays it in the game as baked?

My question is how to save baked cubemap? And why am I not seeing the result in the .png file in explorer?

 

I still hope someone would help me.

 

Try using the OVR screenshot wizard, part of Oculus Integration package https://assetstore.unity.com/packages/tools/integration/oculus-integration-82022

https://developer.oculus.com/documentation/unity/unity-cubemap/?locale=en_US

You can then export the cubemap as an asset