How do I fill in a form thar has been emailed to me on my iPad air??

You need an app that can edit Word documents in order to fill out the form. Apple's Pages app should work. Smart Office, Documents to Go, Quick Office Pro.... There are other compatible apps for Word files available that you can check out.

You need to save the document into one of those compatible apps, fill it out, and then email it (I assume) from that app. Without an app that can edit Word files, there isn't any way to fill out the form.

What type of document is it? Word doc or docx? PDF? Or ???

Yes, we understand. As Demo said, you will need to get an app that can edit Word documents. Demo mentioned the most popular.

Regards.

Docment

Hi. Please describe your problem in some more detail. What are you trying to do? What have you tried so far? Do the solutions already posted here help?