How to select File menu in Mac, just like Alt + F in Windows?

I have a Macbook Air with Mac OSX 10.8.2 . I have been wondering how do I select the File Menu which I am so used to doing in Windows using Alt+F, so that I do not have to click on the File menu each time I need to do something. I googled and checked out a bunch of articles as well. This Wikipedia article suggests http://en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

CTRL+F2 then F. I tried this in Sublime Text and did not work for me. Any clues?

On OS X, anything that has a keyboard shortcut will be shown next to the relative task.

To access and browse the upper menu bar it is CtrlF2. You will see the  icon highlight and you are able to browse the menus with the arrow keys at that point.

If you have the function keys set as special function keys, eg. dim display, play/pause, etc. you either must change them to perform as standard function keys in System Preferences » Keyboard or use the shortcut fnCtrlF2.

I also miss the ease at which I could navigate Windows menus from the keyboard :(

A couple people mentioned that you can use ctrl-F2 to get to the menu bar. This seems really awkward to me, so I took the advice of this CNET article and changed it to option-downArrow. As the article mentions, the advantage to this shortcut is that after using it, your finger is now ready for more navigation via the arrow keys. Of course you can change it to what ever seems easiest to you.

From the article, here is how to change your keyboard shortcut to access the menus:

To do this, open the Keyboard system preferences, and in the Keyboard Shortcuts section, select the Keyboard category. Then locate the option called "Move focus to the menu bar" and ensure it is checked. Then click the "^F2" hot key text so it highlights, then press the hot key of choice.

It's not perfect but it's pretty good.