What is "pandoc"

Pandoc is a free and open-source software document converter, widely used as a writing tool (especially by scholars) and as a basis for publishing workflows. It was originally created by John MacFarlane, a philosophy professor at the University of California, Berkeley.

The program is used by Architect and RStudio to produce documents in a variety of formats from Markdown files which may include statistical analysis written in R and processed with Knitr.