I have created a excel spreadsheet for 25 years of weather data. There is one sheet for each year; each sheet labeled with the year and with the year also listed in A1. Months are in columns and records are nested withing months. All years (sheets) are formatted the same. I am able to summarize data using an expression like MIN('1989:2014'!G48) which returns a correct value, but I also want to know in which year (sheet) the value exists. Is there an expression that will retrieve this additional info?