I have Appleworks 5.9. Can I export its files to another programme?

I have read reports that LibreOffice is able to work with AppleWorks files. You might want to give it a try.

What types of AW files? LibreOffice works fine with AW word processing documents, possibly with spreadsheets, too. Other formats (paint. draw, etc) may not work.

Fortunately LibreOffice is free so you are not risking anything to try it:

http://www.libreoffice.org/discover/libreoffice/

Probably more like AW 6.2.9, than 6.9. You can export word processing documents to Word, or spreadsheets possibly to Excel. Pages '09 v4.3 will open AW 6.2.9 word processing files, and Numbers '09 v2.3 will open AW spreadsheets.

As of May 27, 2015, LibreOffice retired support for v4.3.7 that would run on OS X 10.6.8. Versions 4.3.7 and 4.4.3 now show a minimum of OS X 10.8 (Mountain Lion) as a requirement. You might try downloading v4.3.7. It all installs into a single package in your Applications folder. If it doesn't work, you have one file to drag to the Trash. Ignore any prompts to use Java. You don't want to go there.

I have found that LibreOffice will open ClarisWorks v5, and AppleWorks v6 files (win and mac) reasonably well.

LibreOffice is now available in the Mac App Store.

• Word Processing documents can be opened directly in Pages 4 (AppleWorks 6 only) but this is no longer available from Apple - the new Pages 5 (Yosemite required) does not open AppleWorks documents. (The older version is contained in the iWork '09 box set which may still be available from Amazon and other independent retailers.) Panergy Software's docXConverter v3.3 ($19.95) can convert Appleworks 5 and 6 Word Processing documents to RTF (though it has been reported that it can only handle documents which contain only text, not those which include images or frames). The latest version of the free LibreOffice has announced that it can open AppleWorks 6 Word Processing documents and an ability to open ClarisWorks documents has been reported: it does appear to be able to handle at least some embedded images.
• Draw Documents can be opened directly only in EazyDraw (the more expensive version from their website, not the cheaper one from the Mac App Store, and you will need v4.0 'Retro' not the most recent version) or Intaglio (though this appears not to be able to handle very complex drawings). LibreOffice will open simple Draw documents but I found it very unreliable with complex ones.
• Spreadsheets can be opened directly only in the older versions of Numbers - the new version for Yosemite will not do this. The old version is no longer available from Apple. (Again, the older version is contained in the iWork '09 box set which may still be available from Amazon and other independent retailers.)
• Presentations can be opened directly only in the older versions Keynote; again, the new version for Yosemite will not do this. The old version is no longer available from Apple. (The older version is contained in the iWork '09 box set which may still be available from Amazon and other independent retailers.)
• LibreOffice will open at least some Databases in spreadsheet format, though without any formating or calculations.

You may find my article on 'Abandoning Appleworks' of interest: http://wilmut.uk/aw

Roger,

Thanks for the update on LibreOffice in the App Store. Collabora Productivity is a large UK team of LibreOffice developers (including LibreOffice founders) that contribute 100% of their work upstream to the Document Foundation's LibreOffice code base. That is comforting to know. Their LibreOffice Vanilla v4.4.4.2 (June 18) in the OS X App Store is free. Their LibreOffice-from-Collabora v4.3.8 product (also June 18), is priced at 9.99USD.

The Document Foundation, as of June 21, shows LO v4.4.4.2 as a second release candidate — not a downloadable final product.

I was already familiar with the accompanying bullet points.

Yes, really I was aiming them at the OP.