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 file, OUTFILE, is also in point-source IDA format.