Oops! My apologies for flipping you out.:S

Indeed you are right about self-weight based result I posted. Most softwares automatically consider the W as combined:Gravity + any no. of applied load/s so I missed out "F1" factor in loadcase of Caesar because of being fresh in usage of caesar.

Anyway, so the percentage error boils down to 4.28 % only for deflection and 0 % for Reaction loads & Moments for this particular case.
Exactly same are the results of the X-software mentioned in comp: sheet.

Thanks Richard for your comments and corrections. Now I have a much better understanding.

Regards,
Salz