Im sorry if this is a stupid question but i need to ask

is there a dummy on how to create a excel sheet, i mean what command to use and where to write tham and so on. I have an idea i want to test, where i want to bet on a specific soccer market couple of times, and raise the the amount i bet IF i loose or continue betting same amount if win. Its like if i loose $10 in a game, i want to bet $20 next game. How can i do this?