The LaTeX files are just simple text files. To get a printable output, you have to compile these files to a printable format. Current LaTeX distributions are supporting several formats like the LaTeX-specific DVI-format, Post-Script or the famous PDF-format for the AcrobatReader.
Where other editors are fixed in the generation of output, TeXnicCenter allows you to use all the output formats, available by your LaTeX distribution or additional filters.