Rp Tutorials

I have three questions:

1: I know I saw a tutorial on how to make a gif, but now that I'm looking for it, i can't seem to find it.

2: I said that you had to unzip a file, but I don't have a program that can do that, could someone point me in a direction of one that unzip's files.

3: How do you zip a file, so you can use it with journal watcher? I used to have a program that did that, but it just stopped working.