How do I send a file to different user same PC?

I wasn't sure where to put this.... I've been trying to send a file and pictures from one user to another on the same PC, but its not working. I'm doing what it said I just click share and then click the user and it says its supposed to pop up when other user logs in but nothing! Windows 10.

I've asked other people but no one knows so I'd thought someone with more IT knowledge could explain.

Well just put it in c: drive make a folder "bigcatpics" and any user can see that

I tried putting it in a shared folder but that folder doesn't appear in the list for the other user. I really want to know how to share from user to user with the share button.

just email it to them or to yourself or use a flash drive

Trying to get away from having a zillion flash drives. No one knows how to share between users??