The cursor keys are four arrow keys, located to the right and at the
bottom of the keyboard just next to the Numeric
Keypad. The cursor keys are used to move the cursor (the arrow or
highlighter on the screen) left, right, up and down.
The cursors also navigate around Excel and Word. They are also useful
if you use them when in the Menu Bar. Hit
ALT to highlight the Menu Bar.
If you hold down the left arrow, then the cursor will move left until
it can't go any further or you take your finger off.
CRTL + cursor keys - this allows you to jump around quicker than just
holding down the cursor keys. CRTL left jumps the cursor to the beginning
of the word to the left. With up and down it will jump to the beginning
or end of the paragraph.