Utility to download historical Implied Volatility data from Interactive Brokers?

External question — Quantitative Finance Stack Exchange Author: Contango Original post: https://quant.stackexchange.com/questions/1224 License: CC BY-SA 3.0 — https://creativecommons.org/licenses/by-sa/3.0/ Adaptation: HTML converted to plain text; contact email addresses removed. Does anyone know of a utility that can download historical Implied Volatility (IV) data from Interactive Brokers' Trader Workstation ?