طريقة convert_r1c1_Formula_to_a1 convert_r1c1_Formula_to_a1(r_1c1_Formula, row, column) تحويل صيغة r1c1 للخلية إلى صي......convert_r1c1_formula_to_a1 convert_r1c1_formula_to_a1(r_1c1_formula, row...convert_r1c1_formula_to_a1 ( self , r_1c1_formula , row , column...