---
title: Excel Iteration Setting
description: "The Excel Iteration setting can be modified by going to Tools > Options then click on the Calculation Tab. Check or uncheck the Iteration box as appropriate. Iteration should be checked (turned on) for these products: - Commercial/Industrial Development Version…"
url: "https://www.realdata.com/docs/excel-iteration-setting/"
updated: "2024-06-06"
category: General
---

# Excel Iteration Setting

The Excel Iteration setting can be modified by going to Tools > Options then click on the Calculation Tab. Check or uncheck the Iteration box as appropriate.

Iteration should be checked (turned on) for these products:

- Commercial/Industrial Development Version 5, build 1.13 and earlier
- On Schedule Version 4, build 1.29 and earlier

Iteration should be unchecked (turned off) for these products:

Commercial/Industrial Development Version 5, build 1.14 and later

- On Schedule Version 4, build 1.30 and later
- all other products