inputfilename = 'connexznforce.dat'; inputfilename = 'inputdata.dat'; Limitations: No lines of the text header can begin with a number. The header must come before the data. If comments are added to dat file, they should be appeared at the end of the file, and should have two line COMMENT IDENTIFIER Modification: Only between % and % will be read There can not be any blank line before the variable name or value starts However, if % character is found, the rest is ignored