Today due to many environmental challenges in the world and the concerns regarding the potential rise of the global temperature, the concept of the green energy needs to be established and reinforced especially in developing countries where the fossil fuels are still dominating. As humans it's our responsibility to control man-made emission resources and the true challenge will be the possibility of considering bio-fuel as fuel substitute. This study was made to develop regression models in Excel for the conversion of biomass into Bio-Oil by fast pyrolysis process with prime focus on the liquid product yield and quality in order to study the feasibility of converting the conventional biomass into liquid fuel, draw the attention towards the use of fast pyrolysis technique for increasing the efficiency of biomass utilization and to pave the way for further studies and investigations by considering more factors effect on the yield and quality of bio-oil.