button:

description: A table organizes one or more lines of text into columns. It does this by organizing the text into table rows and, within each row, table data. Text is placed inside the Table Data tags to create the table.

Although the tags are based on the html <table>, <tr> and <td> tags there is no further formatting possible.

In this example a simple 3x3 table is created. Start a new topic and click the Insert Table button which adds the following code.

[table]
[tr]
[td][/td]
[/tr]
[/table]

This generates the start and end of a Table with a Table Row and Table Data inside.

Type two more Data tags within the Row then copy the Row down twice to end up with a table like this:

[table]
[tr]
[td][/td][td][/td][td][/td]
[/tr]
[tr]
[td][/td][td][/td][td][/td]
[/tr]
[tr]
[td][/td][td][/td][td][/td]
[/tr]
[/table] 

Add text between the Data tags and you will have a formatted table:

[table]
[tr]
[td]R1C1[/td][td]R1C2[/td][td]R1C3[/td]
[/tr]
[tr]
[td]R2C1[/td][td]R2C2[/td][td]R2C3[/td]
[/tr]
[tr]
[td]R3C1[/td][td]R3C2[/td][td]R3C3[/td]
[/tr]
[/table] 

Which displays like this.

R1C1	R1C2	R1C3
R2C1	R2C2	R2C3
R3C1	R3C2	R3C3

To add a bit of padding, add some blank Data tags (empty columns), this works better than just padding with spaces.

 [table]
 [tr]
 [td]R1C1[/td][td][/td][td]R1C2[/td][td][/td][td]R1C3[/td]
 [/tr]
 [tr]
 [td]R2C1[/td][td][/td][td]R2C2[/td][td][/td][td]R2C3[/td]
 [/tr]
 [tr]
 [td]R3C1[/td][td][/td][td]R3C2[/td][td][/td][td]R3C3[/td]
 [/tr]
 [/table]

example: [table][tr][td]table cell contents[/td][/tr][/table]

result: <table><tr><td>table cell contents</td></tr></table>