Hello and welcome to vBorg, Chris!
While I haven't personally used this feature, I think what you're after is like what you find in the "FORUMDISPLAY" template:
HTML Code:
<ol class="commalist">
<vb:each from="activeusers" value="row">
<li><a class="username" href="{vb:link member, {vb:raw row}}">{vb:raw row.musername}</a>{vb:raw row.invisiblemark}{vb:raw row.buddymark}{vb:raw row.comma}</li>
</vb:each>
</ol>
It appears the array $activeusers is passed to the template, and then the tag:
<vb:each from="activeusers" value="row">
iterates for each row in the array, and gives the name "row" to the rows during the iterations. So, I'm thinking you would do something like:
HTML Code:
<table>
<vb:each from="myarray" value="row">
<tr>
<td>{vb:raw row.column1}</td>
<td>{vb:raw row.column2}</td>
<td>{vb:raw row.column3}</td>
⁞
<td>{vb:raw row.columnn}</td>
</tr>
</vb:each>
</table>