Williams r is a mt4 (MetaTrader 4) indicator and it can be used with any forex trading systems / strategies for additional confirmation of trading entries or exits.
(downloadable file Williams r.rar contains Williams r.ex4 and Williams r.mq4)
Free Download Williams r mt4 indicator 
How to install Williams r in forex trading platform metatrader 4?
- Extract the downloaded Williams r.rar.
- Go to “File menu” in Mt4 trading platform and click “open data folder”. Open Mql4 folder and open the indicators folder.
- Now paste the Williams r.ex4 and Williams r.mq4 files into indicators folder and restart the MetaTrader 4.
