The markup language of memo() supports tables using the same markup syntax as HTML:
<table>
<tr>
<td>foo</td>
<td>bar</td>
<td>baz</td>
</tr>
<tr>
<td>A</td>
<td>B</td>
<td>C</td>
</tr>
</table>
| foo | bar | baz |
| A | B | C |
You can specify the name of a table style as the class attribute of the <table> tag:
<table class="DataTable">
<tr>
<td>foo</td>
<td>bar</td>
<td>baz</td>
</tr>
<tr>
<td>A</td>
<td>B</td>
<td>C</td>
</tr>
</table>
| foo | bar | baz |
| A | B | C |
You can omit closing tags if the parser can close them automatically. This was valid HTML in the beginnings of the Internet, and modern browsers still render it correctly:
<table>
<tr>
<td>foo
<td>bar
<td>baz
<tr>
<td>A
<td>B
<td>C
</table>
| foo | bar | baz |
| A | B | C |