Creating tables
Click Insert > Table to begin. The pull-down menu gives you three options, including selecting the numbers of cells you want in the grid that appears.
Tab to table
Another way to start a table is hitting the Tab key after you type something. Keeping tabbing to create rows, hit Enter for columns.
Start using OneNote
The best way to learn OneNote 2013 is to start using it. Click File > New to create a notebook, and then choose where you want to save it. Add sections, and give each section a name.
Excel in OneNote
You can start a new Excel Spreadsheet or insert an existing one by clicking Insert > Spreadsheet. You can also convert an OneNote table into an Excel one.