I can only hope, I have copilot at work and I only find it useful in Word. Excel it tells me I need to put the data in a table. Not following why copilot can't do this action for me. Then when I manually put it into a table it tells me table the table is too big. The meeting summary is ok. If you show up late to a Teams meeting you can ask it to tell you what you missed so far, which is kind of nice. The right mouse click summarize a document does sound like a nice feature, be nice if it works on Excel files with pivots.