Hi there Leanne and welcome
The office version of word you need to purchase, as it is sold by Microsoft.
You can purchase and download it from my link below
There is though a free alternative which is very similar to Word, not as good, but will read and make word documents and this is called Open Office
The program is called Write and you can download it from my link below
If you would like any additional information or assistance, please do not hesitate to let me know.
Else if you can take a second to rate my service by clicking one of the stars at the top of the screen then submit, that would be greatly appreciated.