opening a file containing photos, and sending them to someone else. windows 10 doesn’t work like windows 8

I recently installed windows 10, tried to use the photo app to select pictures and send them off, but windows 10 doesn't work like the instruction manual says for windows 8'

I don't mind telling you that I'm not too quick on my computer skills. Some of the things that people can do in their sleep come hard for me, and of course there isn't an instruction manual to consult.

would really appreciate it if someone could tell me how to open the file once I've called it up, and how to select & send pictures.