A large Excel recalculates endlessly on every change
With 200,000 rows of formulas Excel recalculates everything on every edit. Small changes become minutes of work.
Try this first
- 1Formulas > Calculation Options > 'Manual'. Excel only recalculates on F9. Edit freely, press F9 when ready.
- 2Replace volatile functions (NOW, TODAY, INDIRECT, OFFSET) with stable alternatives. Volatiles recalculate on any change in any cell.
- 3Whole-column references (A:A) are expensive. Limit to the real range (A2:A50000).
- 4For genuinely big datasets: this is Power Query or database territory, not Excel anymore.
When to bring us in
Critical processes balanced on a shaky Excel? We help move them to Power BI or a light database. Pays back in weeks of saved time.
See also
- My laptop is suddenly slowThree main suspects: a runaway background process, near-full disk, or a Windows update in progress.
- One specific application is slow for everyoneIf an app is slow for one person: local. For everyone at once: server side or vendor side.
- Opening files from the file server takes minutesOften the server itself is fine and the issue is network routing or stalling DNS resolution.
None of the above fits?
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