.csv text file manipulation

I would like someone to take a .csv file which is a comma delimited text file. make a program for the following. -check if there are 600 records -search for certain text adn replace the text -and then sort all lines according to a particular field. maybe a excel macro can be written or a program to do this. ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No 3rd party components unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement). ## Platform windows or ms dos