Display Unclick the Column headings and Row Headings boxes. Check out the Solid lines box . Click in there to get solid lines rather than dotted ones forming the rows and columns. Keep in mind that solid lines take more ink to print than dotted ones. But hey, it's your ink.
Some people use a spreadsheet to make an index or table.
When they finish entering all the info, they unclicked the cell grid. Just once, be reckless and daring. Take a look at a spreadsheet without all the lines. You might like it. Display and click them back on.