Help! Nightmare! - It's all gone

Ok.  Now, I’ve found a data file that MIGHT be the correct data file (based upon the number of PDFs in the data file) but the attached enl file doesn’t appear to be showing it’s contents.  It’s showing the contents of some other library.

How do I get the enl file to look at this data file?

Anyone, or am I just yelling into the wind with no hope?