Ran CCleaner wipe free space and free space in mbr on Windows 7 3TB drive it wiped all my files

Is there a way to get my files back? Windows 7 did something weird when it made the 3TB drive because it used to show as 800GB and I don't know if that affected how CCleaner works.

The drive now shows with no file system and just RAW.

Backup the drive first if possible with imaging software, and then try another software to convert RAW to NTFS that specifically states it can do so without losing data and without formatting. Conversion used to be a quick simple fix back in the WinXP days, I don't know about newer OSes though.

Search Link:

https://duckduckgo.com/?q=convert+raw+to+ntfs+without+losing+data+and+without+formatting

You could try using Recuva to see if it will recover the files. You'll need a second drive to recover the files to though.