MCMD (M-Command) is a set of open source commands developed to process large scale data structures (CSV data) efficiently. The commands can process more than 20 million records of CSV data on a regular PC. This operator runs in a UNIX environment (Linux / MacOS). To use this operator, firstly you need to install MCMD from NYSOL website below: http://www.nysol.jp/en/home This extension was developed by KSK Analytics, Inc.