In reply to Fruit:
Sorry for the delay in this. have updated the diary downloader now.
Bit of a complicated one, with no perfect solution. As one activity can have multiple 'extras', they have to be added on as additional columns. In your specific case for 2020, its not really an issue as you only ever have one additional column. So in your case for example, there are now two extra columns, to tell you the name of the extra data, and the value of said extra.
The alternative was to add a new column for each 'extra' type, but it would then make it pretty wide, and mostly empty. So instead it is more of a key-value concept.
Let me know if you have any issues, or better suggestions!