Excel High CPU Behavior

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There are some steps you can take to improve performance and mitigate these issues:

1. Close unnecessary applications: Close any other applications or processes running in the background that might be consuming CPU resources.

Excel High CPU Usage: Why & How to Limit It.

1. Disable unnecessary add-ins: Disable any add-ins in Excel that you don't need, as they can consume additional resources.
2. Optimize your workbook: Make sure your workbook is optimized for performance. This includes minimizing the use of volatile functions, reducing the number of conditional formatting rules, and avoiding excessive calculations.
3. Use efficient formulas: Avoid using volatile functions excessively, as they can recalculate frequently and impact performance. Use array formulas sparingly, as they can be resource-intensive.
4. Split large workbooks: If you're working with large amounts of data, consider splitting your workbook into smaller, more manageable files to reduce the strain on Excel.
5. Update Excel: Ensure that you have the latest version of Excel installed, as newer versions often include performance improvements and bug fixes.
6. Increase hardware resources: If possible, consider upgrading your computer's hardware, such as increasing RAM or using a faster processor, to handle the demands of working with large datasets.
7. Use Power Query and Power Pivot: Consider using Power Query and Power Pivot, which are powerful tools in Excel for handling and analyzing large amounts of data more efficiently.

By implementing these best practices, you can optimize Excel's performance and minimize the impact of high CPU usage.