You can insert a table in your Outlook on the web email messages or calendars to help you organize your data.
Insert a table
In the body of the email message or calendar item, choose the More down arrow.
Choose Insert table, drag the pointer to select the number of columns and rows you want in your table, and then click OK to insert the table.
Add content to your table.
Change, apply style, or delete a table
You can change a table's layout and appearance.
Select the cells you want to change, right-click, and then choose a menu option.
Use to insert a row or column.
Use to delete the table, a row, or a column.
Use to merge cells.
Use to split a row or column horizontally or vertically.
Use to embellish your table.