Got to know a very cool tool to use R in Excel named RExcel, basically it provides an integration solution such that users can get data, run command in Excel the same way as in R, which is presumably good and convenient to present results to your colleagues.
Check yourself a demo video at http://rcom.univie.ac.at/RExcelDemo/
The package can be downloaded free at http://rcom.univie.ac.at/download.html
Tags - r , excel
Read the full post at Using R in Excel.