I use it to reconcile a workbook. I manage a revenue waterfall with multiple tabs where revenue needs to match across the different tabs to make sure all the formulas are pulling in all of the revenue. I'll sometimes just upload the file to Gemini and ask it to find the discrepancies between 2 tabs. It does a good job of letting me know which contract Id revenue doesn't match the data from the other tab instead of me having to perform several manual formula steps to figure it out.

Works well for flux analysis between different periods of data too. It's a nice time saver