Lots of times, I've been able to extract the text from a formatted word processing file by opening it in something like
Tex-Edit Plus or
Text Wrangler. You lose formatting and graphics, but you get the text, which is usually more important.
I tried opening a Pages file with a text editor and there's no text at all. It's binary, maybe it was compressed, like a docx file? So I drop it on StuffIt Expander to see what happens.
Out pops a folder containing a plist (data unimportant to a human), an xml file which contains the text (even though it's stored as an xml database, it is readable), a PDF of the file and a PDF of the first page.
If you're desperate, you can drop the file on StuffIt Expander and then open the xml and strip out the extraneous data, or copy/paste the data inside the PDF. It'll have extra carriage returns, but it is the data.
Really didn't expect this.
mt