Nickel cobalt oxide nanofilms were grown by electrodepositing method using heptahydrated nickel tetraoxosulphate (VI) salt as source of nickel ion, Citric acid as oxidizing agent, hexahydrated cobalt chloride salt as source of cobalt ion, and Sodium hydroxide as pH adjuster. The percentage doping was varied from 3% to 23% in intervals of 5%. Results of the study show that optical properties viz absorbance, reflectance, refractive index, extinction coefficient, are directly proportional to percentage doping with cobalt while percentage transmittance is inversely proportional. However, the films exhibit low absorbance and reflectance in all the regions of electromagnetic spectrum and high transmittance in the regions