I'm not sure you have read my instructions properly...
You're going through Windows settings, not through the Control Panel.
Go to Control Panel -> Clock and Region -> Region - Under the Formats Tab, click "Additional Settings" -> Under the Numbers Tab, change List Separator from "," to "|"...
My EN version had only "," in the list separator, and we wanted to use "|". Using my method allows you to create and select any symbol for the list separator.
Meaning they can just input a comma and apply the config. When I say input, I mean type it with your keyboard, do not select from the...
This will 100% fix this issue -
Steps:
Go to Control Panel -> Clock and Region -> Region -Under the Formats Tab, click "Additional Settings" -> Under the Numbers Tab, change List Separator from "," to "|" or whatever you want and click Apply and ok, as shown in the images. Close, reopen Excel...