The program spread sheet is very simple to use.
Send the program spread to your calculator and than just 
run spread.  Once you start you will see a title screen
in a few seconds push enter and you will be directed to the actual
spread sheet.  to start a new spread sheet push [window]  to quit push
[trace].  The cursor when you start is the flashing dot in the upper
left hand corner of the first cell.  when moving through the cells
the current cell is always the one with the flashing dot in upper
right hand corner.  to edit data in a cell push enter and than input
a number up to three digits long.  than it will automatically update
the cell.  