When asked for my opinion of how to extract the data from a failed RAID 0 I tend to echo the well-known advice to lost traveller from the rather less than helpful local:
“I wouldn’t start from here”.
Perhaps not out loud, but in my mind is least.
The problem is that most people who have selected to store their data in a RAID 0 volume did so because they had read about increases of access speed resulting from such an arrangement. The reality is that very few people will benefit from or indeed even notice any increase in speed. RAID 0 only exhibits this speed benefit when you work routinely with large individual files (graphic designers are perhaps the most common group of people who use RAID 0 on a daily basis).
On the other hand the downside of a RAID 0 is immense. Should any one of the individual hard drives within the array fail then you will have no access to any of your data and will have to go to a specialist in RAID 0 recovery to have any chance of getting those files back again.