Before opening an important file for editing, it is good practice to make a copy of your original file; in the event of problems you can always revert to the original.
![[Home]](../Images/weetop.gif)
![[Search]](../Images/weesearch.gif)
![[Index]](../Images/weeindex.gif)
This site maintained by
umk@astroa.physics.metu.edu.tr