I have a local install of WordPress and run it with XAMPP. I do this so that I can make major changes to my website offline. But when I try modifying the style sheet I get a message saying that I must make the file writable before saving the changes. The message provides this link to the codex: http://codex.wordpress.org/Changing_File_Permissions
I find the entry confusing and useless to help me solve this problem. I can make changes to the style sheet directly using my text editor, why can't I save changes through wordpress? More importantly, how and where do I change the file permissions for wordpress?