Stuck in extracting P99

[Fengir]

"Once you have completed installation you will need to extract the Project 1999 required game file changes. The current distribution is Project 1999 Files (V36).
These files must overwrite any existing files encountered during extraction into your Titanium directory."

Hello.

I just finished my EQ Titanium download and got all installed in C:\EQEmu as suggested. But now i don't understand what means extracting. Just an IT illiterated [You must be logged in to view images. Log in or Register.]

Thanks for any help

Fengir (newly reborn)