extra usb hard drive time machine back up recover
I backed up my MacBook to a USB external hard drive so as to update my OS from El Capitan to Big Sur using the time machine. I followed the process in where it asked me to erase all files, as I had already backed them up. Now that I am done and have Big Sur up and running, I reconnect the USB external hard drive but can't find where my backed-up files are so as to reinstall them in my Mac Book. Can any body help me ? Thank you