Word is by default in insert mode which means that when you type, all the text to the right of the cursor moves over as you type.
Step2
To strike over text, press the INSERT key. The letters OVR will appear in the status bar at the bottom of the screen. Now when you type, the existing text will be replaced with what you type.
Step3
To add text to a document, make sure the INSERT key is not turned on and key in appropriate text at the point of the cursor.
Step4
To delete text to the left of the cursor, press the BACKSPACE key.
Step5
To delete text to the right of the cursor, press the DELETE key.
Tips & Warnings
Remember that the action will take place at the point of the cursor.
All keys are repetitive. If you hold them down too long, they will repeat the action.