PostScript (PS) is a common format for documents in academic settings; but many of our PC's don't know how to handle it.
You can use GNU Ghostscript. Download the lastest version with "w32" (for Windows 32-bit) in the name, and run or unzip. Ghostscript will display and print PS files; the graphics are a little rough and jaggy.
Or you can convert to PDF format at ps2pdf.com.
You can print PS files with: lpr myfile.ps.
You can use GNU Ghostscript, already installed. Here's how: ghostview myfile.ps & .