You can always use the clipboard. Copy from the CW file and paste into Word. you'll probably have some formatting issues, but you might have a few using SaveAs to the .doc format too.
The iWork applications - Keynote, Pages & Numbers - can only open AppleWorks 6 presentation, word processing & spreadsheet documents, respectively. They will not open any other type of AppleWorks 6 files or any AppleWorks 5 or any version of ClarisWorks files.
Check a local elementary school or your local Apple User Group to see if they have an older Mac that can run Classic & has AppleWorks/ClarisWorks 5 or earlier (back to the version used to create your resumé), open the file & save it as Word, plain/ASCII text & RTF. I recommend saving as all three file types to give you a better chance of opening it in a current version of Word. The version of Word it saves as may be too old to open using current software. Using AppleWorks 6 may not be an option because many ClarisWorks 4 or earlier files return an I/O error & cannot be opened.
Add the .cwk extension to the file name & see if TextEdit will open it. You would probably get a lot of "garbage" text before & after the actual content.
Use MacLink Plus from DataViz to convert the file. Rather expensive for just one file, but it's your call.