Question

how can you add borders around the selected cells​

Answer 1

Answer:

Don't confuse the borders that you add to accent a particular cell selection with the gridlines normally ... Use the Borders button on the Home tab to choose borders for the selected cells.

Explanation:

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Answer 2

Answer:

To add borders to cells, follow these steps:

1. Select the cell or range of cells that you want bordered.
2. Select the Cells option from the Format menu.
3. Click on the Border tab.  
4. In the Border section of the dialog box, select where you want the border applied.  
5. Select a line type from the Style area.
6. Click on OK.

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