Are there any problems dealing with files with XBAP?

We are working on a project (web, asp .net mvc) which requires a lot of file interaction like edi开发者_C百科ting word templates. We found that it is pretty easy to bring the file contents into WPF rich textbox (as RTF) and save it.

The question I want to ask is: Are there any gotchas when it comes to handling files in XBAP since we are going to invoke the wpf application as XBAP?