File name completion at the beginning of the command line

Please provide an option to complete all filenames at the beginning of a command line. None of these, below, are completed at the beginning of a command line yet all of them work at the beginning of a command line. I'm confident I could find more.

*.chm, *.txt, *.ini, *.docx, *.xlsm, *.png, *.gif, *.jpg, *.wmv, *.pdf, *.rdp, *.mid

I'm tired of typing a space.