Hi, I looked at your images, If you want to just update the formula and macro to make it compatible with office 2019, then I guess it will take 1 day (and around 50 £), depending on the formulas and the codes. If you want this file be developed from scratch (for having more capabilities), it will take around 7 days (and around 200 £). Please send me message to discuss more and send me your Excel file for more accurate estimation