Steps to recreate:
1. Create a .ppt file or download it from the internet
3. Try opening it outside the Titanium Studio.
4. Operating System would complain that it is not readable.
5. Optional: Import it in Eclipse Classic 3.7 and try opening it.
6. Import it in Titanium Studio (drag it in a titanium mobile project folder)
7. Double click on the file,
it opens up in activity area and you can see corrupted characters in the file.
It should complain(like Eclipse 3.7 Classic or even Mac OSX Operating System) that it is invalid either while importing or while trying to open it