Here on the Excel team, we’re always working to improve Excel’s performance and stability. We constantly seek customer feedback regarding what we can do to make a better product, and implement positive suggestions whenever we can. In fact, many of the improvements we have made recently were direct responses to customer pain points. For instance, we discovered that many heavy, institutional Excel users were less than thrilled with Excel’s performance when they upgraded from Office 2010 to newer versions.
We listened, and the team set to addressing those areas where we could make the most significant performance improvements possible and deliver them in the shortest time. For example:
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We've again made substantial performance improvements to Aggregation functions (SUMIFS, COUNTIFS, AVERAGEIFS, etc.), RealtimeData (RTD), and lots more for significant decreases in calculation time.
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We've made substantial performance improvements to the VLOOKUP, HLOOKUP and MATCH functions, which also resulted in significant decreases in calculation time - and for Microsoft 365 customers, XLOOKUP and XMATCH offer better flexibility and even more performance improvements.
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We improved Excel’s memory allocation with Large Address Aware Excel, increased copy/paste speed, undo, conditional formatting, cell editing and selection, scrolling, filtering, file open, and programmability.
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We've re-engineered Excel's calculation engine with the release of dynamic array functions, which replace Excel's legacy Ctrl+Shift+Enter (CSE) array functions. These functions add capabilities to Excel that were difficult to achieve in earlier versions of Excel. For instance, you can now sort and filter a list with formulas instead of doing it manually.
To continue on the performance theme, this article lists multiple tips for improving Excel’s performance.
Performance tips for specific circumstances
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CIRCUMSTANCE |
TIP |
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General slowness when editing in the grid or when switching worksheets |
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Slowness when moving an Excel window or when using ALT+ shortcut keys after upgrading to Windows 10 |
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General slowness on a machine with no dedicated graphics processor or with an old graphics card or driver |
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Slowness when editing one cell after another |
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Slowness when using multiple high-resolution monitors with per-monitor dynamic high definition aware Office functionality |
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Parts of Excel turn white or gray when you run VBA code |
Use ScreenUpdating property and DoEvents command appropriately in VBA code |
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Unresponsiveness or high CPU on Windows 10 when many Excel windows are open and Background Application Manager runs a periodic background scan |
Set this registry key in Windows 10 version 17763.832 or later to turn off the scan. |
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Slowness pressing ALT+ shortcut keys in Excel |
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Slowness when Excel launches |
Open Excel in Safe Mode to see if the slowness is caused by add-ins |
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You see out-of-memory issues opening multiple workbooks |
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Power Query is taking too long to load to a query to a worksheet. |
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Power Query is taking too long to add a query to Preview Data in the Power Query Editor. |
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Registry path |
New Key Values |
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HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\BamThrottling |
Name: DisableWindowHinting |
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HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common |
Name: UseAsyncRibbonKeytips |
Links to popular topics
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Subject |
Description |
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Read about the Excel team's latest performance improvements. |
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Memory allocation improvements with Large Address Aware (LAA) capability |
Excel can now use more of your system memory than ever before, even with 32-bit Office. |
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Read about methods for being smarter with formulas and how they calculate. |
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This is a broad recap of some of our latest improvements. |
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Tips and tricks for optimizing your VBA code from the Excel team. |
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Considerations for common performance issues with Office Add-ins and Macros in Office |
If you create macros or Office add-ins, you'll want to review this article. |
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More tips on how to improve Excel's calculation performance, including with User Defined Functions (UDFs) for VBA. |
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Comparing Single and Multiple document interfaces in Excel 2010 and later versions |
In Excel 2013 and later versions, each Excel window can contain only one workbook, and each has its own ribbon. This is called Single Document Interface (SDI). By default when you open a new workbook, it will be displayed in another Excel window, even though it is the same Excel instance. |
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