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I'm nasdaq.
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Upload a ransom note and/or sample encrypted file to identify the ransomware that has encrypted your data.
id-ransomware.malwarehunterteam.com
Submit a sample of the compromised files for their review.
They will reply and let you know what you are dealing with.
From what we know now, your files are not recoverable.
Your only solution would be to restore the files from a good backup if you have one.
The compromised files can be transferred to a CD or Flash drive.
Should a solution be found in the future you may be able to restore them.
It's never to late to use common sense to guard against being infected.
Tips on how to prevent ransomware attacks
What does ransomware do and how can I protect myself? Learn how to protect your computer with ransomware scanners
www.kaspersky.com
Good luck.