@sbala,
As per your message, what you are looking for is to read data from excel file and update the same on the above URL.
I suggest you first write a code to read data in the excel file. You can use Apache POI or JXL libraries to read test data from excel file.
Now, when you have data retrieved, you will have to write a code to edit (You have to use doubleClick instead of click) one of rows.
You can identify each row as List<WebElement> and then edit the row you want to edit and use data from the excel file that you have read in the above step.
Feel free to write back if you need more information.