Yes, you can. But it's not a good way to send files. Send us a PDF instead.
If you are not able to send us a PDF, send us your Microsoft files and we'll do the conversion. We'll send you a PDF proof before we print.
To find out how to convert your Microsoft files to PDF, click here: http://office.microsoft.com/en-001/word-help/save-as-pdf-HA010064992.aspx