Blog question

[Grim]

I been looking everywhere for the_exerpt to change it too the_content, - I've looked on search engines for info about it, I looked in every file in the wp dir, I was led to beleive it was in wp-includes/post-template.php but I couldnt a mention anywhwere in the code where it was as simple as to just swap exerpt for content
My blog is definately showing exerpts through browser etc..

Thanks a lot..