Could you please take a quick look at this help article
describing how to build a RadTreeView that corersponds to your file system ? For showing the docx files , you may use the RadRichTextBox
Please let us know if this helped you.
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items