Visual Studio 2019 is not running other .cpp files

New to VS and C++. I'm trying to run code for source file "test2.cpp." However, every time I run the program, VS always runs "Simple-letter-with-ASCII-number.cpp."

I'm on the "test2.cpp" window, but the file never runs. I need assistance in running "test2.cpp" and not "Simple-letter-with-ASCII-number.cpp," without deleting any .cpp files, if possible.

• Both .cpp files have different labeled main()
• Both .cpp files are in the same project