Picking up on Russ' point I've done a simplified version that removes some of the confusion, particularly around Names which are not transferred to OzRunways for imported points.
To use simply over type Lat/Lon in decimal or Deg/Min and add an entry in the ID cell (All green cells). Press the generate button and you're done.
If you want to name the point add name to one of the code cells. If not it will be named by the lat/lon.
Should be available on the OzRunways web site as well shortly.
OzRunways_Userpoints_Rev1.5.zip
OzRunways_Userpoints_Rev1.5.zip
OzRunways_Userpoints_Rev1.5.zip