In Access tables are arguably the most important object. Use tables in Access to store all of your data to run queries and reports.
By default, the background of every other row in an Access table is a few shades darker than the background of the rest of the table. This darker alternate row color makes your table easier to read by offering a visual distinction between each record and the records directly above and below it.
Another way Access makes your tables easier to read is by adding gridlines that mark the borders of each cell. Gridlines are the thin lines that appear between each cell, row, and column of your table. By default, gridlines are dark gray and appear on every side of a cell, but you can change their color or hide undesired gridlines.
To view additional formatting options, click the Datasheet Formatting arrow in the bottom-right corner of the Text Formatting group.
The Datasheet Formatting dialog box offers several advanced formatting options, including the ability to modify background color, gridline color, and border and line style. It even includes the ability to view a sample table with your formatting choices, so play around with the various formatting options until you get your table looking the way you want it.