QC INTEGRATION WITH SELENIUM

Hi I want to run the test cases using Selenium Webdriver then update the result(whether pass or fail) in QC along with screenshot.Please let me know what is the way out to do the same .

Detail is following :
After running through Selenium user will update the result in Excel,there will be n # of test cases which have the result as either pass or fail then we will fetch the data from Excel and update in QC.


Please let me know the approach .Thanks in Advance