It would be helpful if you could attach an actual document to a post containing a table you want to convert. You can do that via the paperclip symbol on the 'Go Advanced' tab at the bottom of this screen.

It would also be appreciated if you could confirm which of the formats indicated at https://en.wikipedia.org/wiki/ICalendar you want as the output. It doesn't appear that the output is concerned with which day you regard as the first of the week.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]