how do I remove the border around a cell? I did it by right-click the cell,
then click Format Cells.

click the Border tab and I remove the borders by clicking on them. or to
remove all of them, click the preset None. However after i got back to the
spreadsheet, the border line still there. I also choosing ToolsOptions,
and on the View tab, remove the check
mark from Gridlines. But this option remove all the gridlines not of a few
cells line which is what I want. any help?

thank you.