Thank you! Thank you so much. This really helped! Your email address will not be published. This site uses Akismet to reduce spam. Learn how your comment data is processed. Skip to content When you create a pivot table it groups the items from your data, and calculates a total for each group. Scroll down to make sure that all the records were changed. Clear the filter on the City column Refresh the pivot table, and the duplicate items will disappear.
Add a New Column If the records were imported from another source, and you expect that the problems with trailing spaces will be ongoing, you can use a TRIM formula to clean up the data.
Follow these steps to add a new field: Insert a new column in the source data, with the heading CityName. Copy the formula down to the last row of data in the source table. If the source data is stored in an Excel Table, the formula should copy down automatically. I am sure you also have many tips that can help tackle slow excel spreadsheets. Do share it with us here in the comment section.
I also have one request. The pain of working with a slow excel spreadsheet is something many of us experience on a daily basis. If you find these techniques useful.
Is there a way to turn this off other than switching to manual calc. Sir, 24th Feb. I must thankful to you find such useful notes. Hoping to receive such valuable notes in future too. Those are all great suggestions. To help know what parts of your spreadsheet are slow you can also download this add-in to help you measure how long it takes to calculate your spreadsheet.
That was very helpful content, but i will add something to it. You just wiped out most of the most convenient tools. The Formula shown above was really helpful for me learn Excel. Hi Sumit Thanks for the list. I agree to most of your points. But especially no. Also the effect of most of the points under no. I measured the difference in calculation time: There seem to be other factors even more relevant.
Hallo Mr. As it is not possible to change formula anytime. Thanks for commenting Selcuk.. Definitely, there are a lot of systemic issues that are practically user independent and makes the workbook slow. I really hope MS will come up with more powerful Excel that can handle large data sets and still be fast. Did they pay for the bandwidth…no..
They even place it in a hidden protected file. Its a huge waste of economic productivity, which depends so critically on computers today. All those talented software engineers just producing one garbage product after another because all the brass cares about is money and ruining the competition by its resting on its laurels with patent thickets and protectionism rather than concentrating on making a better product.
There is no time to chill. The cost to our economy is far more than their market share. The company should be dismantled for everyones benefit, as the antitrust judges orderered over a decade ago. Its long overdue. Try these two approaches to see if one works: Approach 1 Transfer your data to another sheet by Copying your data cells and paste special values into another sheet Then copy and paste your formulas into the other sheet and see if that works.
Byron Byron 2 2 silver badges 11 11 bronze badges. Ryan Schaefer 2, 1 1 gold badge 19 19 silver badges 41 41 bronze badges. Jason Cameron Jason Cameron 31 5 5 bronze badges. Your suggestion is really not clear - why would that help at all? Does it have to be that number? Does it need manually triggering? More information please. Omar Omar 97 1 1 silver badge 11 11 bronze badges.
I fixed mine merely by going to formulas, calculation tab, "calculate now". It woke Excel up. Mindy Martin Mindy Martin 1. Cindy Miller Cindy Miller This is actually worth looking at. I solved in a very simple way: try saving the file with OpenOffice. Marco Gugliotta Marco Gugliotta 1. Enter the formula as an argument in the Function Wizard.
Select the formula in the formula bar and press F9 press Esc to undo and revert to the formula , or click Evaluate Formula. A formula is flagged as uncalculated when it refers to depends on a cell or formula that has one of these conditions: It was entered.
It was changed. It is in an AutoFilter list, and the criteria drop-down list was enabled. It is flagged as uncalculated. The circumstances that cause a defined name to be evaluated differ from those for a formula in a cell: A defined name is evaluated every time that a formula that refers to it is evaluated so that using a name in multiple formulas can cause the name to be evaluated multiple times.
Names that are not referred to by any formula are not calculated even by a full calculation. Data table recalculation always uses only a single processor.
Controlling calculation options Excel has a range of options that enable you to control the way it calculates. Figure 1. Calculation group on the Formulas tab To see more Excel calculation options, on the File tab, click Options. Figure 2. Calculation options on the Formulas tab in Excel Options Many calculation options Automatic , Automatic except for data tables , Manual , Recalculate workbook before saving and the iteration settings Enable iterative calculation , Maximum Iterations , Maximum Change operate at the application level instead of at the workbook level they are the same for all open workbooks.
Figure 3. Advanced calculation options When you start Excel, or when it is running without any workbooks open, the initial calculation mode and iteration settings are set from the first non-template, non-add-in workbook that you open. Automatic calculation Automatic calculation mode means that Excel automatically recalculates all open workbooks at every change and when you open a workbook.
Iteration settings If you have intentional circular references in your workbook, the iteration settings enable you to control the maximum number of times the workbook is recalculated iterations and the convergence criteria maximum change: when to stop.
Workbook ForceFullCalculation property When you set this workbook property to True, Excel's Smart Recalculation is turned off and every recalculation recalculates all the formulas in all the open workbooks. Figure 4. Setting the Workbook. ForceFullCalculation property Making workbooks calculate faster Use the following steps and methods to make your workbooks calculate faster. Processor speed and multiple cores For most versions of Excel, a faster processor will, of course, enable faster Excel calculation.
RAM Paging to a virtual-memory paging file is slow. Measuring calculation time To make workbooks calculate faster, you must be able to accurately measure calculation time. Iteration If Application. If Application. If Selection. Calculate Case 3 Application. Calculate Case 4 Application. CalculateFull End Select ' Calculate duration. Figure 5. The Excel Macro window showing the calculation timers Finding and prioritizing calculation obstructions Most slow-calculating workbooks have only a few problem areas or obstructions that consume most of the calculation time.
Drill-down approach to finding obstructions The drill-down approach starts by timing the calculation of the workbook, the calculation of each worksheet, and the blocks of formulas on slow-calculating sheets. To find obstructions using the drill-down approach Ensure that you have only one workbook open and no other tasks are running.
Set calculation to manual. Make a backup copy of the workbook. Open the workbook that contains the Calculation Timers macros, or add them to the workbook. Run the FullCalcTimer macro. The time to calculate all the formulas in the workbook is usually the worst-case time.
Run the RecalcTimer macro. A recalculation immediately after a full calculation usually gives you the best-case time. Calculate workbook volatility as the ratio of recalculation time to full calculation time. Activate each sheet and run the SheetTimer macro in turn.
Run the RangeTimer macro on selected blocks of formulas. For each problem worksheet, divide the columns or rows into a small number of blocks. Select each block in turn, and then run the RangeTimer macro on the block. If necessary, drill down further by subdividing each block into a smaller number of blocks. Prioritize the obstructions. Speeding up calculations and reducing obstructions It is not the number of formulas or the size of a workbook that consumes the calculation time.
First rule: Remove duplicated, repeated, and unnecessary calculations Look for duplicated, repeated, and unnecessary calculations, and figure out approximately how many cell references and calculations are required for Excel to calculate the result for this obstruction. Usually this involves one or more of the following steps: Reduce the number of references in each formula. Second rule: Use the most efficient function possible When you find an obstruction that involves a function or array formulas, determine whether there is a more efficient way to achieve the same result.
For example: Lookups on sorted data can be tens or hundreds of times more efficient than lookups on unsorted data. Consider replacing slow array formulas with user-defined functions. Third rule: Make good use of smart recalculation and multithreaded calculation The better use you make of smart recalculation and multithreaded calculation in Excel, the less processing has to be done every time that Excel recalculates, so: Avoid volatile functions such as INDIRECT and OFFSET where you can, unless they are significantly more efficient than the alternatives.
Minimize the size of the ranges that you are using in array formulas and functions. Break array formulas and mega-formulas out into separate helper columns and rows. Fourth rule: Time and test each change Some of the changes that you make might surprise you, either by not giving the answer that you thought they would, or by calculating more slowly than you expected.
Therefore, you should time and test each change, as follows: Time the formula that you want to change by using the RangeTimer macro. Make the change. Time the changed formula by using the RangeTimer macro. Check that the changed formula still gives the correct answer.
Rule examples The following sections provide examples of how to use the rules to speed up calculation. Period-to-date sums For example, you need to calculate the period-to-date sums of a column that contains 2, numbers. You could write the formula using SUM , which is an efficient function. You can eliminate this duplication if you write the formulas as follows. Error handling If you have a calculation-intensive formula where you want the result to be shown as zero if there is an error this frequently occurs with exact match lookups , you can write this in several ways.
Example list of data for count unique If you have a list of 11, rows of data in column A, which frequently changes, and you need a formula that dynamically calculates the number of unique items in the list, ignoring blanks, following are several possible solutions. Count End Function Adding a column of formulas. Add this formula to cell B2.
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