MS office 2011 for Mac

I have just purchased a Macbook Pro and also purchased MS office online. However I can't install properly after downloading the file. A message "can't recognized ISO file image". How can I do???

Please help!!! Can't use for one day!
Many many many thanks!

Re-download

I approached the authorized dealer yesterday. They said that ISO format is not the appropriate format which cannot be opened by Mac user. They helped me to load the installation file into my MacBook Pro based on other format. Finally installation was completed within 5 min.

If somebody wants to install MS Office for Mac, never purchase online through Microsoft website. Instead ask the authorized dealer to download for you. You can get the product key after purchasing online. This is the most efficient method.

i got it from amazon, no problem with the installation wo

If that is the case, don't purchase from Microsoft online store. That can't be installed after file downloaded.