Your command line might look something like this:Ĭ:\> copy in1.txt + in2.txt + in3.txt Combined.txt This will then copy all of the input files into the one output file, and you're done. With Copy, you can specify a number of files as inputs and one file as an output file. Probably the simplest command-line approach to use in combining files is to use the Copy command. The other approaches are much faster, but they do require that you do the work at the command line. Obviously, this is a very tedious approach-especially if you have more than a couple of files to be combined.