The Excel formula `I_EOL_CRY_EXCHANGE_RATE` retrieves the average exchange rate across a time range from Exact Online. Parameters: - `divisionCode`: division code. - `foreignCurrencyCode`: foreign currency code - `calendarDate`: calendar date - `useExactMatchOnly`: whether to only match on the specific date. - `searchMaxDaysBefore`: maximum number of days to search before as a positive number. Specify -1 to signal none. - `searchMaxDaysAfter`: maximum number of days to search after as a positive number. Specify -1 to signal none. Returns: average exchange rate across time range.