Store the extra entries in a csv file (compare.csv) when compared to another csv file (source.csv) and store the result (result.csv) USAGE Run the build script: .\build.bat And use source and compare files with: ..\build\csv_reader.exe source.csv compare.csv result.csv Example: source.csv: id,name,name,name 1112222,some_string_value,Hello,World 4442222,other_string_value,Bye,World compare.csv: id,name,name,name 1112222,some_string_value,Hello,World 9112222,some_string_value,Hello,World 5552222,some_string_value,Hello,World 8888222,other_string_value,Hello,World result.csv: 9112222,some_string_value,Hello,World 5552222,some_string_value,Hello,World 8888222,other_string_value,Hello,World - Rudra