Sir, I need to create Preventive maintenance plan scheduled for equipment. We will do service for every 250 hours for the equipment. For A-check (250 hrs), B-check (500 hrs) and C-check (1000 hrs). The sequence of check is ABAC, once it is reached 1000 hrs (C-check) and then cycle is starts again. As per the sequence A(250) B(500) A(750) C(1000). We need to generate maintenance schedule by entering the current hours of the unit. So please help me to create the Preventive maintenance plan in excel.