Documents can be accessed and edited directly on a Smartphone with the installation of a few apps.
FileZilla APP (the same program used to access our FTP through your computer) is available for:
IPHONE & ANDROID: http://www.zillamo.com/
In order to open an MS Word document on a Smartphone, MS Word or MS Office APP must be installed:
MS OFFICE FOR IPHONE: http://www.copytrans.net/support/how-to-add-word-excel-and-powerpoint-documents-to-iphone-or-ipad/
MS OFFICE FOR ANDROID: http://www.androidcentral.com/word-excel-and-powerpoint-apps-android-smartphones-now-live-google-play-store
When accessing documents from your Smartphone, log into FileZilla and the FTP as you normally would. Right click on the document you want to see/edit and it will be accessible on your Smartphone.