7.1 Channel Names

I want to export a file into a 7.1 Channel Surround sound, but I don’t know what each channel number means! Can somebody help me?

The version of windows I am using is Windows 10. Audacity Version 2.1.1

Getting channel allocations right is a bit tricky. They vary depending on the file format, and not all players are the same. The best “standards” information is probably this: https://en.wikipedia.org/wiki/Surround_sound#Surround_sound_specifications