CLI for the powerful and free office suite LibreOffice. More information: https://www.libreoffice.org/.
libreoffice --view {{path/to/file1 path/to/file2 ...}}
libreoffice --cat {{path/to/file1 path/to/file2 ...}}
libreoffice --pt {{printer_name}} {{path/to/file1 path/to/file2 ...}}
.doc files in current directory to PDF:libreoffice --convert-to pdf *.doc