Copying and renaming excel files with Python

I am trying to copy an excel file and rename it. For example I have a file HI.xlsx and I want to copy it and rename it as BYE.xlsx.
My code to do this is below and when I run it, the file BYE.xlsx is created, but it is corrupted.

Here is what I am using:

fIn = open(r"HI.xlsx")
fOut = open(r"BYE.xlsx", "w")

Answer

You should be using shutil.copy():

shutil.copy("HI.xlsx", "BYE.xlsx")