Eliminating rows in Excel worksheet
 

I am using 1200+ rows in a worksheet, but there are more than 65,000 rows on
the worksheet and it makes it cumbersome scrolling up and down to make
changes. How do I get rid of the rest of the rows? I've tried highlighting
and deleting, but that doesn't do anything. Thank you,

Eliminating rows in Excel worksheet
 

Why don't you just highlight them, then right-click and hide them?