The main data file ends in .QDF. All Quicken versions prior to QW2010 store your data in a series of files all sharing the same filename but with different extensions like - .QDF .IDX, .QEL, .QPH and all 4 of those files were rolled into a single-file .QDF starting in 2010.
If you need to convert to a newer version you need to go through one or more intermediate versions. If you don't want to download or import transactions you can stick with Quicken 2013. I'm using 2013. It's the last good version before they started requiring an ID.
You can download 2013 for free using this how to convert article. It’s under Converting from Quicken 2004-2009.
Opps, I forgot that you need Online Services to be able to open a QDF. Guess you'll have to buy a subscription to Quicken. It has a 30 day money back guarantee.
Rocket J Squirrel said:I don't believe this to be the case. Are you thinking about QFX files, which do need to go online?OP should be able to download QW2013 and (with luck) open the QW2008 QDF with it.