-right click and Select All
-switch to a text editor and paste
-save the file as a csv
-switch to a spreadsheet program and import the csv file
=Problem is that the commas embedded in the various fields cause the spreadsheet to split the data quite differently from how it was displayed in the Timeline view.
Maybe a feature request to add an “Age” column to the Events category view? Then you could just do a CSV export from that view. Such export already includes quotes around the columns that contain commas.
Actually, I guess that suggestion wouldn’t work. It would have to be calculated as the age of the primary person in each event, and in the case of events such as marriage which have more than one primary person, then it couldn’t be calculated.