[NBLUG/talk] Wine for Quicken?

[Edward]

Hello Community,

A married couple, friends of ours,  is looking for a Wine for their five 
(5) year long Quicken files. They have ALL of their personal and small 
business budgeting, finances, etc, in their Quicken files from the last 
five years (Windows environment, unfortunately) and they want to switch to 
using a Linux OS but they are afraid of losing or corrupting their tax and 
money records in the process.

Is their a good Wine out there (not for drinking, although they might start 
if they lose their data) for Quicken?

What is the best personal and small business finance software for the Linux 
OS or the Linux equivalent of Quicken?

Can this program integrate Quicken files into the Linux environment w/o 
data loss or the need for a Wine?

Thank you sincerely,

Edward