You will not have to open it, just add the selected file/s to the interface of Print Conductor and print it.
You'll be able to print many different formats including: PDF, DOC, WRI, WPS, RTF, TXT, XLS, PPT, PPS, POT, VSD, DWG, DXF, SNP, HTM or HTML. Use the add button or drag and drop the files you want to print.
Another interesting option is the one called virtual print, that creates a TIFF, GIF or JPG file instead of printing it.
If you usually print lots of files, Print Conductor will be really useful.