Please Note: This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here: Forcing Manual Calculation For a Workbook.

Forcing Manual Calculation For a Workbook

by Allen Wyatt
(last updated October 22, 2016)

Excel workbooks can become quite complex. In fact, it is possible to create workbooks that can take hours to calculate. The only problem with this, of course, is that when you open a workbook, it automatically recalculates if you have Excel configured to do that. This means that just opening a workbook can, in some instances, take hours.

One solution, of course, is to turn off automatic recalculation before you open the workbook. If you are like me, this solution isn't that great because my memory isn't always that great.

A better solution is to turn off automatic recalculation for certain workbooks. Since Excel doesn't allow you to specify manual or automatic recalculation on a workbook-by-workbook basis, you will need to add this feature through the use of a macro that automatically runs when the workbook is opened. This macro can turn off automatic recalculation, as shown here:

Private Sub Workbook_Open()
    Application.Calculation = xlManual
    Application.CalculateBeforeSave = False
End Sub

This macro must be placed in the ThisWorkbook project window. This means that you should open the workbook, press Alt+F11 to display the VBA Editor, and then double-click on the ThisWorkbook object in the Object Browser (upper-left corner of the VBA Editor window).

If you want, you can also place another macro right after the previous one. This macro is run automatically when the workbook is closed and, in this case, turns automatic recalculation back on:

Private Sub Workbook_BeforeClose(Cancel As Boolean)
    Application.Calculation = xlAutomatic
    Application.CalculateBeforeSave = True
End Sub

There is an important caveat to remember in relation to using this macro. You can only set the calculation mode for the application as a whole. Thus, with automatic recalculation turned off, no other worksheets will be automatically recalculated, either.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (1988) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Forcing Manual Calculation For a Workbook.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He  is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Selecting a Paper Size

Most of the time we print on whatever is a standard paper size for our area, such as letter size or A4 paper. However, Word ...

Discover More

Entering a Degree Sign

One of the more common symbols that people need to use in their writing is the degree symbol, typically used after a numeric ...

Discover More

Removing a Macro from a Shortcut Key

Associate a macro with a shortcut key, and at some time you may want to break that association. (Perhaps so the shortcut key ...

Discover More

Professional Development Guidance! Four world-class developers offer start-to-finish guidance for building powerful, robust, and secure applications with Excel. The authors show how to consistently make the right design decisions and make the most of Excel's powerful features. Check out Professional Excel Development today!

More ExcelTips (menu)

Using BIN2DEC In a Macro

Need a way, in a macro, to convert binary numbers into their decimal equivalents? There are two ways you can get the desired ...

Discover More

Sheets for Months

One common type of workbook used in offices is one that contains a single worksheet for each month of the year. If you need ...

Discover More

Using InputBox to Get Data

Need your macro to get some input from a user? The standard way to do this is with the InputBox function, described in this ...

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is 2 + 1?

There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)


This Site

Got a version of Excel that uses the menu interface (Excel 97, Excel 2000, Excel 2002, or Excel 2003)? This site is for you! If you use a later version of Excel, visit our ExcelTips site focusing on the ribbon interface.

Newest Tips
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.