Message: Document is unsaved
Cause
You have tried to close a document, or exit the program when a document has changed since it was last saved. If you continue exiting the program you will lose these changes.
What Can I Do?
 Click 
 Save if you want to save your 
 work and keep the changes.
 Click 
 Save if you want to save your 
 work and keep the changes.
 Click Don't 
 Save to discard the changes you have made to the document.
 Click Don't 
 Save to discard the changes you have made to the document.
 Click Cancel 
 to cancel the operation and leave the program running.
 Click Cancel 
 to cancel the operation and leave the program running.