EDITING

[LOOK2RETIRE]

HOW DO I DELETE EVEN NUMBERED ROWS, LEAVING THE ODD ROWS?

 

[Dave Peterson]

I'd use a helper column.

I'd put this formula in the top row:
=mod(row(),2)
and drag down the length of your data.

Then apply data|filter|autofilter to that column.
Show the even rows (value of 0)
and delete those visible rows.