Hi there!

To calculate the next monitoring visit based on a start date using days instead of months, you can use the function in combination with the function. Here's how:

1. First, enter the start date of the monitoring visit in a cell. Let's say it's in cell A1 and the date is 06 Dec 2004.
2. Next, enter the number of days between monitoring visits in another cell. Let's say it's in cell B1 and the number of days is 56.
3. To calculate the projected visit date, you can use the following formula in a new cell:
   
   
   Formula:

   =DATE(YEAR(A1),MONTH(A1),DAY(A1)+B1) 

   This formula uses the
   Formula:

   DATE 

   function to create a new date based on the year, month, and day of the start date (cell A1), plus the number of days between monitoring visits (cell B1).
   
4. Press enter and the formula will calculate the projected visit date based on the start date and the number of days between monitoring visits.

That's it! You can now use this formula to calculate the projected visit date for any start date and number of days between monitoring visits.