Excel calculation options stuck manual

While calculating the whole sheet in Manual Calculation mode using F9 (Calculate Now) will work and calculate in ~10 seconds, but when I turn it I am a relatively experienced excel user, and while generally don't write VBA macros from scratch am pretty confident at re-purposing code I inherit / find Please Note this is not regarding "Automatic Calculation = Manual" as this will not turn off execution for something like "=SUM(4,5)". There is no way to stop Excel evaluating a formula when it is entered (well, except when you fill down in Manual Calculation mode). What can cause manual calculation/F9 to stop recalculating some cells properly in Excel 2010 ? I've Googled this problem and ruled out all the explanations I can find Normally calculating manually with F9 or switching calculation to automatic works as expected, but sometimes I have to use Ctrl Excel has three calculation modes. Sometimes they change when you're not expecting them to. Find out what triggers this change. You're probably aware that Excel has two main calculation modes: automatic and manual. Automatic calculation will re-calculate the workbook when a value changes In Excel worksheet, there are three options under Workbook Calculation. Manual. - Do not auto calculate until clicking on the cells that contain a formula- Able to force recalculate of workbook by pressing CTRL+ALT+F9- SHIFT+F9 to recalculate active worksheet. My Excels' Workbook Calculation option is set to Manual in File > Options > Formulas > Calculation options. The Recalculate workbook before saving option is checked. When I copy-paste from the worksheet to a think-cell datasheet, the source Excel workbook is nevertheless automatically Configure formula calculation options. Excel always calculates a formula when you confirm its entry, and the program normally recalculates existing formulas automatically Manual Select this mode to force Excel not to recalculate any formulas until you either manually recalculate or save the workbook. Controlling Calculation. Excel has a range of options allowing you to control the way it calculates. Automatic calculation mode means that Excel will automatically recalculate all open workbooks at each and Calculation Mode (Automatic, Automatic except Tables, Manual, Calculate before Save). Calculation options. Automatic - (Application Setting) Calculates all dependent formulas every time you make a change to a value, formula or name. Manual - Calculates only when requested by the user. more Recalculate before save - Calculates all dependent formulas in the worksheet before it is Go to File > Options > Formulas > Calculation options section in Excel 2016, Excel 2013 and Excel 2010. This will give a circular reference warning if iterative calculations are not enabled. If you haven't done so already, enable this option and set the Maximum Iterations to 20 to find the interest Disable Automatic Calculations Macro Example. Manual Calculation. Whenever you update a cell, Excel goes through a process to recalculate the workbook. When working directly within Excel you want this to happen 99.9% of the time (the exception being if you are working with an extremely large Stop Formula Calculations in Excel. Go to the Formulas tab and click Calculation Options and select Manual: Download the sample workbook for this tutorial to test How to Manually Calculate Formulas and Functions. When you have the formula calculation set to