Retrieving the "csv" file from /storage/emulated/ directory from Mac using Android File Transfer.app
I don't know the reason why, but my Android File Transfer for Mac doesn't properly synced with the Android phone. 

I had to open File Manage in Android, point to the file that I saved, and then I shared it with my google drive. 



This works, but I think Android File Transfer should just show the saved file automatically.