I have a file that needs to go into my application but all the data is
grouped together. My application will recognize it is moved on to a new data
set when it see's -999.99, and the application is smart enough to say hey
this an entirely new data different from the data above it.

Here is generic example of what I have:

23 95.6 10003
23 80 650
23 2 897
49 600 10000
49 23 11

Here is what I would like to have:
23 95.6 10003
23 80 650
23 2 897
-999.99 -999.99 -999.99
49 600 10000
49 23 11

So whenever the value changes in column A to a new value I need it to insert
a new row of data that have the values of -999.99.

Thank you for the help.