I have ACT, from 1997 version 4, I am trying to figure out how to export all contact into an excel file.
You can't directly. You can export the contact information to a delimited file and then open that in Excel. ACT! 16 does allow directly exporting the various list views to Excel.
how do I get all contact information out extracted?
That would require a third party utility. Check http://www.jltechnical.com/exporter.htm