For those interested in having The Clements Checklist of Birds of the World 6th Edition available in Excel sheet I uploaded my version and shared it via my blog. In case you want to have the list manageable fell free to find the download link.
Though there has been a little delay I will soon upload a new version where all the countries are listed where one seen a lifer. The Pivot Table just summarizes everything automatically.
Have a good birding: Szimi
PS: Don't worry about my simple English, it certainly should be understandable