Reconverting files

Thank you very much!!
Now here’s a dumb question…
How does MCE know not to try to redo a file it already has processed if it’s in the same folder?

It keeps a history file so it’s based on path and filename.
Within the Monitor Location \ Expert Settings. As long as Re-monitor recorded videos is unchecked it won’t re-process it.

Is there a simple way to clear MCE’s cache so that will redo a folder?
I’d like to start from scratch but I need to have MCE not remember what it’s done.

Turn on the option that I screenshot above or click Show History from main screen and click Clear history button.

Thanks. I should read more