Securing Documents on X2 - SUCCESS
I figured out how to do it.
1. Downloaded free version of "Documents to Go". Upon initial start-up it asked for a password or a pattern to secure the contents. I drew a pattern on the 9-key keyboard.
2. Copied the MS Word and MS Excel files from my computer to the SD card. (without encrypting or password protecting them)
3. These files show up both in the "Documents to Go" app and the android "Files" app.
4. Since they're on the SD Card, if you launch the "File" app, a list of your documents appears but when you try to open one, the "Documents to Go" app starts and the 9-key keyboard is presented for my to draw my access pattern.
I think the purchase version of Docs to Go will allow you to password protect your documents within MS Word and I don't think the expense is justified since I can now control access by my access pattern.
Hope this helps others.