Yes, its Quicken Expensable 7. I have the Vista patch installed too (not that it makes a difference).
When I open any of the tax files, Quicken tells me that "The file you have tried to open is not an ExpensAble file."
I had the computer crash on me randomly, no warning, no signs of problems, and took it to Firedog (Circuit City) after failing to be able to boot and get the files off. I now have the files, but they aren't worth anything.
I don't *think* opening them in notepad (or any text application) would be logical, as its (as I said) about 6 years of every transaction made.
File recovery (or ... de-corruption - for loss of a better word) program is what I am seeking, but none of the ones I have found support qex files