The Lounge is rated Safe For Work. If you're about to post something inappropriate for a shared office environment, then don't post it. No ads, no abuse, and no programming questions. Trolling, (political, climate, religious or whatever) will result in your account being removed.
Anything that is unrelated to elephants is irrelephant Anonymous - The problem with quotes on the internet is that you can never tell if they're genuine Winston Churchill, 1944 - Never argue with a fool. Onlookers may not be able to tell the difference. Mark Twain
Indeed, no question mark. Although the posting does raise some questions, e. g. what are 'source file thanks'?
GOTOs are a bit like wire coat hangers: they tend to breed in the darkness, such that where there once were few, eventually there are many, and the program's architecture collapses beneath them. (Fran Poretto)
As others have pointed out, you should not be asking programming questions in The Lounge; this is a place to kick back and relax, to ask questions about things other than programming or to talk about the programs you are working on. Before you go and pick a more appropriate forum, you need to stop and think about your question for a second. At first glance, your question just appears to be how you would open the source files using something like a text editor or an Integrated Development Environment, but we would only be making this as an assumption. You could also be asking, how do you programmatically open a source file. If that's the case, you need to provide more context such as what language you are talking about there.