Below are some of the options
- I think the safest and best option is to use OpenOffice which is free and opensource. This can open and convert into whatever format you want.
https://www.openoffice.org/download/index.html
- Download converter from Graham Mayor's site who is a reputed Word expert.
http://www.gmayor.com/Zips/WorksTextConv.zip
- One option is to use online converter Zamzar. But they will be asking for your mail address. I don't know why. I leave it to your guess.
https://www.zamzar.com/convert/wps-to-doc/
- Microsoft used to provide a utility called Microsoft Works 6-9 File Converter which MS has taken off now. But some of the software sites do offer a copy. If you need this, you can perform Bing search and take apprrpriate decision to download. (Downloading from the third party sites has their own risks)
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