Macro for copying sheets from one workbook to the active workbook

[Santino_X]

Good night, I'm writing a macro to organize a database and get the prom from other xls in the same path, i more or less got an idea of how to do everything except how to make an "examine" window so the user can choose the workbook from where to copy the data and it will always take the first 2 sheets and put it after the last sheet in the active workbook. After that i can organize it and write the data in the cells needed.
Does anyone has a code for the examine window?
Thanks!