How do I remove Abode from book files which I cannot open?

Install a free copy of Adobe Reader and you will then be able to read all the files - I told you this half an hour ago in your previous question. PAY ATTENTION!

Continuing good luck...

http://get.adobe.com/reader/

This is where you can get it from - copy (Ctrl +C) it from here and paste it (Ctrl +V) into your browser - where the www.howtomendit appears.

Alternatively
Use the feature on your machine that lets you search for different files - find the files and delete them. You will then be blind to them - both unseen & unreadable.

Peccavi
December 2012