To customize the line style or color of cell borders or erase existing borders, you can use the Draw Borders options. To draw cell borders, you'll first select the border type, then the border …

On a sheet, select the cell or range of cells where you want to add or change the borders. On the Home tab, in the Font group, click the arrow next to Border , and then click the cell border that …

Select one or more cells that have a border that you want to change. Right-click over the cells you've chosen and select Format Cells and, in the popup window, click the Border tab.

You can apply a preset style to a picture—including a border and shading, or you can apply a custom border of your own choosing.

How to use conditional formatting in Excel to visually explore, analyze, and identify patterns and trends.

Format cells, numbers, text, and other data in Excel to improve readability. Learn how to apply borders, shading, text colors, and more.

On the Border tab, apply vertical borders to the left, right, and middle of the range. On the Alignment tab, in the Orientation box, enter a degree value or drag the indicator to the angle …

Use the Format Painter in Office to quickly apply the same text formatting and other formatting, such as borders and fills to multiple pieces of text or shapes.

Presets - Click one of the Presets options to apply a set of lines to the object. You can select options that correspond to no lines, all borders, or all borders and cell dividers.

Change the look of a line by applying a Quick Style, or customizing the color, style, or weight individually.