This example illustrates the way one can convert Unix flat files into class instances. Changing a field (it's type or format) in an example.dat file, highlights the parser error detection mechanism. When the example has been compiled, put the two files "example1.dat" and "example2.dat" in the directory "EIFGENs/W_CODE" or in "EIFGENs/F_code" directory depending on your type of Eiffel compilation.