Restore Ransomware Virus affected Infected Files

Hi My PC has been hit by a ransomware, and all my files has been affected. Can you please help me in resolving this? Virus has been removed, as I’ve formatted my PC, but files are infected as is. Need help with restoring Sample file attached… (Budget: ₹600 – ₹1500 INR, Jobs: Computer Security, Internet Security, Web Security)