How do I get started?
Try opening the file!
How do I do that?
You should see a single line of legible text when you open it in a text editor, but you'll want to get a hex editor to help you actually solve the first puzzle (and maybe future puzzles too).
I don't know what I'm supposed to do!
There are often little hints in the puzzle itself! For example:
Spoiler for puzzle 3
The Meta logo is supposed to tell you to look at the metadata of the image.
I don't know how to do the thing you want me to do!
Learning new things is part of the fun! Google is your friend.
Hey, this is kinda fun!
I know, right?!