Adding Length (time) to CSV

Additional note for the import of a CSV into MS Excel:

Don't just double click on your CSV file to open it in Excel.
Open Excel first and then inside Excel click on
Open -> Search
then change the extension from the default *.xls to
All files *.* or
Text files *.csv to find your *.csv file.

Then click on the Open-Button.
This way, you get a 3 step wizard to import your data into Excel.
In Step #1 of #3 you should choose Delimited (even if Excel tells you it has detected "Fixed width")

In Step #2 of #3 you can define your delimiter (a TAB or ; or § or whatever you use)