FB Messages Archived, But Not There?

sinsinbad Posts 1 Registration date Monday May 1, 2023 Status Member Last seen May 1, 2023 - Updated on May 1, 2023 at 09:20 AM

A senior man and not tech savvy. I recently archived some important FB messages to save on my computer, but they are NOT in Archive.

I can't find them anywhere.  

Suggestions on how I can find them and/or why they weren't archived.