I primarily deal with Excel (xls) files nowadays. I wrote a command line tool to extract data: https://www.npmjs.org/package/j https://www.npmjs.org/package/j

I primarily deal with Excel (xls) files nowadays. I wrote a command line tool to extract data: https://www.npmjs.org/package/j https://www.npmjs.org/package/j In my current workflow, I generate JSON from the excel files and use the really awesome JQ command (http://stedolan.github.io/jq/ http://stedolan.github.io/jq/) to process