Loss data due to Time Machine mistake

I mistakenly began using the Scan Disk as a Mac OS Time Machine backup. Stop the backup midway through setup process. Hoping to recover the original data on the Scan Disk External drive.

Hi @SteveSherman
You may refer to the below article about the data recovery for flash drive and memory card:
lInk:USB Drive and Memory Card Data Recovery Options

Have you opened a Support Case? If not opened, for more information, please contact the SD Technical Support team for best assistance and troubleshooting: