On the Insert tab, click the Table button in the Tables group. In the drop-down menu, select the small boxes that represent columns and rows and select how many rows and columns you want in your table ...
If you want to insert or add a Table in Gmail and Outlook messages, here is how you can do that. It is quite straightforward since you can use Google Sheets or Excel Online to fetch the table from.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results