You should be able to open these in Google Docs, OpenOffice, Apple Pages, or MS Word without trouble. They are unlocked, so you can add your own graphics, change colors, and update them to make them branded to you.
Due to the generic file type, there may be some formatting necessary to make them appear as you wish on your own word processor.
Poly VVX 150
Poly VVX 250
Poly VVX 350
Poly VVX 450
HP-Poly Edge E Phone Comparison
Yealink BYOD Guide - Updated to include the CP925 and CP965
Grandstream GXW Series BYOD Guide
Polycom VVX 100 series
Polycom VVX 200 series
Polycom VVX 300 series
Polycom VVX 400 series
Polycom VVX 500 series
Polycom VVX 600 series
Seat Packages
(basic) Call Center Licenses
Call Queue Type
Yealink Device Training Video