Thank you stefno. You are pointing me to the right place and direction.
However, I could not remove the border after selected the preset none. I
chose the none for the light too from the list of lines on the right but
after clicked ok and got back to the spreadsheet, the cell border still
there. I wonder what is going on?
Thank You
Stefano said:
right-click the cell, then click Format Cells.
click the Border tab and you can remove the borders by clicking on them.
or to remove all of them, click the preset None.