How do I send a game?

Having no experience in publishing programs made on unity, I have no idea how to send the data files and the game itself to other people. I can attach the game part of the program to a link, but I can’t attach the data file for the program. When I click the link, It pulls up the build & run screen, but upon trying to start the game, it says that it cannot run without the data files. What do I do?

When you build the project, an executable and a folder suffixed “_Data” is created. Both the executable and the folder should be on the same level of hierarchy in file system.