Need to export data from your Drupal web site to Excel?
Use the Views Bonus Pack module - it gives you the ability to set your view's style to CSV, XML, DOC, and other formats.
Check it out!
I have written blogpost for "Downloading Custom Data Excel Sheet in Drupal" on my blog site. Here it is - http://www.drupalconnect.in/download-custom-data-excelsheet-drupal