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#This is for windows
import os
#Go to the file in your file explorer and right-click to copy as path or get the path from the file properties
os.startfile("C:/Users/MyPCUserName/Downloads/Video/PYTHON AUTOMATION PROJECTS FOR BEGINNERS.mp4")
#Replace 'MyPCUserName' with your username, the file name with your preferred file name and remember to change from backslashes to forard-slashes
#You can also make this a function. Run.