Search loop to find excel document in subfolders

[met1713]

I am a noob a programming in excel and need some help programming. I have a GUI in excel and you enter a station, a code, and process no. all in combo boxes and then hit search and then it searches for the excel file listed by process no. and i have my master file called program and then 6 six station folders inside that then in those about 64 code folders a piece and then inside those up to 120 process no folders. I started programming it as one big if elseif statement but quickly realized I should try to figure out a loop but didnt know where to start. In my program, my names for combo boxes are cbostation, cbocode, and cboprocess. Is their anyway to program a loop to find the excel process no. with out including every single folder, or making a 6000 line if elseif statement. Whoever takes the time to respond thank you for your time it will be a huge help