macro for excel file

I have more than 10 identical excel files. Each sheet of this file is protected with the same password “1234”. These files have a mistake in the formulas. I create a correct file with correct formulas with the name “correct file”. I will send this file to each user in order to correct their excel files. Each user will open on his pc the correct file and the file that we want to correct. In the correct file I want a button in the sheet “data”. Each user will copy this button to his excel file in order to copy the VBA code. With the press of this button I want: 1. Go to sheet “salary”, unprotected the sheet with password “1234” copy the formulas from the correct file B5:l18 and B18:L18. Then to protect the file with “1234”. 2. Go to sheet “SI” unprotected the sheet with password “1234” copy the formulas from the correct file B5:lL5, B8:L8, B12:L12 and B18:L18. Then to protect the file with “1234”. 3. Go to sheet “income tax” unprotected the sheet with password “1234” copy the formulas from the correct file B6:l6 and B13:L13. Then to protect the file with “1234”. 4. Go to sheet “data trans” unprotected the sheet with password “1234” copy all (formulas) from the correct file to the current file. Then to protect the file with “1234”. 5. Go to sheet “certificate” unprotected the sheet with password “1234” copy all (formulas) from the correct file to the current file. Then to protect the file with “1234”.