I am new to Meta Trader. I have .ex4 file, when I open the file nothing happen. How can I paste and run the .ex4 fiile? What do I need to do to have the program running?
Move the .ex4 into the "experts" folder.
Look at the list of Expert Advisors.
The one you added will be in the list.
Drag it onto the chart of your choice.
Make sure Expert Advisors are enabled in MT4, and make sure Live Trading is ticked.