Hello @DamienBourguet ,
To insert a table in page or post, please follow the simple steps:
Go to Dashboard > Posts or Pages > Copy and Paste the below structure > click publish button.
<table>
<thead>
<tr>
<th>Employee</th>
<th class="views">Salary</th>
<th></th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td><a href="http://example.com/">Jane</a></td>
<td>$1</td>
<td>Because that’s all Steve Job’ needed for a salary.</td>
</tr>
<tr class="even">
<td><a href="http://example.com">John</a></td>
<td>$100K</td>
<td>For all the blogging he does.</td>
</tr>
<tr class="odd">
<td><a href="http://example.com/">Jane</a></td>
<td>$100M</td>
<td>Pictures are worth a thousand words, right? So Tom x 1,000.</td>
</tr>
<tr class="even">
<td><a href="http://example.com/">Jane</a></td>
<td>$100B</td>
<td>With hair like that?! Enough said…</td>
</tr>
</tbody>
</table>
Now, edit the data as per your requirement.
Best Regards!!!