This is an advanced setup guide for RExcel. This guide describes advanced methods for installing and uninstalling RExcel. The methods described here should be used as a last result or by advanced R users.

This guide should be used by:

1. An advanced R user who does NOT want to uninstall his R installation so as to use the automated installer on the portal
2. A user who is unable to uninstall an existing RExcel installation so as to use the automated installer on the portal. This guide describes an advanced Uninstallation method for RExcel.

As much as possible, stick to using the automated installer for RExcel found at http://www.sweetpotatoknowledge.org/germplasm/research-methods/cloneselector2-0/R-with-rcomrscproxy-rexcel-installer.zip/view and only result to this guide when you must.