I don't know if you noticed the date on that was 2012 and it is currently 2025; along with my comment mentioning "rabbit hole, weeks ago" but all of those settings no longer exist.
I just opened Excel M365, opened per Data -> From Text/CSV a csv file and coulds chose the delimiter.
I tested semicolon and comma and in both cases the autorecognition selected the correct delimiter but I could change it to equal sign, space, tab, user defined.
You can't change the decimal separator, but the field delimiter is possible.
Comments
You can in excel: https://superuser.com/a/407085
Also, I believe you can change the default separator in Settings somewhere.
I don't know if you noticed the date on that was 2012 and it is currently 2025; along with my comment mentioning "rabbit hole, weeks ago" but all of those settings no longer exist.
I just opened Excel M365, opened per Data -> From Text/CSV a csv file and coulds chose the delimiter.
I tested semicolon and comma and in both cases the autorecognition selected the correct delimiter but I could change it to equal sign, space, tab, user defined.
You can't change the decimal separator, but the field delimiter is possible.