Problem opening .ppt document

I am producing a school fete programme and one company have sent me an ad in .ppt form. I do have powerpoint 2007 but when i try to open the document i get this error message,
"Powerpoint cannot read the outline from text converter is installed for this file type".
Since receiving it I have managed to view the ad (possibly on a different computer or in my mailbox) so i'm somewhat confused and as I'm hurtling towards a deadline I'd be very grateful if anybody could help! thanks!

  MAT ALAN 10:25 14 Jun 09

This error usually occurs when a file has been created in Office 2007 and saved in a format that allows older versions of Office to open them.

click here

the prog in the link should help...

Thanks that's fixed it!!

This thread is now locked and can not be replied to.

Surface Pro (2017) vs Surface Pro 4

20 groundbreaking 3D animation techniques

How to mine Bitcoin on Mac