Can Android 4.1 Jelly Bean open MS-office and PDF files? I want to buy a HCL tablet that have Android 4.1 Jelly Bean. I want to know if it can open MS-office and PDF files.
No, you can't open MS-Office and PDF files directly from Android.

You have to install a third party app.

A few nice apps available in market for this:


WPS
Microsoft Office Mobile