How to Change cells starting from right to left in Microsoft Excel 2007

Language is set to English UK - Laptop and MS Office 2007 bought in Middle East- dont have problem with other progammes (anymore) but Excel cells go Right to Left - A1 is top right corner.

How do I change it to Left to Right ?

Tools>Options>International tab>Default direction

Regards,

That is fine for 2003- but in 2007 I do not see this option?

Thanks

Office button (large round top-left button)>Excel Options>Customize>All commands, scroll down to Right to left document, click Add, OK
Now you have a button on the QAT (next to the Office button) that toggles the direction