Actually, there is no Bullet and Numbering command in Excel. But we can insert mimic symbols in cells which look like bullets.

1. Double click the cell that you will insert symbols, and put the cursor at the position where you will insert the symbols, and click Insert > Symbol.

2. In the Symbol dialog box, find and select a symbol that you will insert, and click the Insert button.

In this case, select the Calibri from the Font: drop down box, and select the Geometric Shapes from the Subset: drop down box, and you will find a lot of bullets symbols.
    

Then it inserts one bullet symbol in the active cell.

You can insert as many bullet symbols as possible in the active cell. If you insert hard carriage in the active cell, you can apply bullet symbols for each line. See the following screen shot:

Note: You can also apply shortcuts to insert bullet marks into one cell. click to know more

To batch apply bullets to all cells in a specified range, you can apply Kutools for Excel's Add Text utility.

1. Select the range that you will apply bullets to all cells, and click the Kutools > Text > Add Text.

2. In the opening Add Text dialog box, you need to:

If you have Kutools for Excel installed, you can apply its new Insert Bullets or Insert Numbering features to quickly insert bullets or numbers into multiple selected cells with only one click.

Select the cells you will insert bullets for, and click Kutools > Insert >Insert Bullet, and then select one of bullets from the submenu. And now the specified bullet has been inserted into all selected cells at once. See screenshot:

For inserting numberings into multiple cells, please select these cells, click Kutools > Insert > Insert Numbering, and then specify a numbering style from the submenu. See screenshot: