I was upgraded to os 10.9.1; none of my appleworks documents can be opened
Duplicate of this question.
I am not a OS X user so I can only give some reference to documentation from:
Import of legacy Mac OS word processing documents (MS Word for Mac (1-5.1), MS Works for Mac, ClarisWorks, AppleWorks, Write Now, MacWrite Pro)
Above statement is for LibreOffice 4.1. You can download it from: https://www.libreoffice.org/download
Just for note, LibreOffice 4.1 can only convert AppleWorks/ClarisWorks word processing files(*): see Can LO open Clarisworks / Appleworks documents (text, spreadsheet, and drawing)? .
If you have other types, http://www.wilmut.webspace.virginmedia.com/notes/aw/page1.html regroups some solutions.
(*) In fact, it also accepts to convert drawing and painting documents but the result is often not good ; it will be a little better with LibreOffice 4.2…