The Extractida routine allows you to extract specific plants out of a point-source, IDA-formatted inventory file. The program reads a list
of state/county codes and plant IDs and an IDA-formatted inventory file, then outputs only those records from the IDA file
that match sources in the state/county and plant ID list. The program sorts the list of state/county codes and plant IDs and
eliminates any duplicate records before reading the inventory file and selecting those records that match the list. The output
OUTFILE, is also in point-source IDA format.