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Hi Rusty,
From what you described, this most often happens when Excel is no longer recalculating formulas automatically. When calculation is set to Manual, formula results can appear “stuck,” even though the formulas themselves are still intact. The line you’re seeing is typically just strikethrough formatting and it doesn’t stop formulas from calculating, but it can make the issue more confusing.
Here are a few things to check first:
- Verify calculation mode Go to Formulas > Calculation Options and make sure it’s set to Automatic (not Manual). If Excel shows Calculate or Calculate Workbook in the status area, that usually means it’s waiting for a manual recalculation.
- Force a recalculation Press F9 to recalculate. On Mac, you may need
Fn + F9, or use Formulas > Calculate Now from the ribbon. - Confirm Show Formulas is off Go to Formulas and make sure Show Formulas is not enabled. When it’s on, Excel displays formula text instead of results, which can look like calculations have stopped.
- Rule out Text formatting Right‑click one of the affected cells, choose Format Cells, and confirm it’s not set to Text. If you change the format, press F2, then Enter to force Excel to re‑evaluate the formula.
- Clear formatting if needed If the line only appears in some cells, try Home > Clear > Clear Formats to rule out normal manual strikethrough formatting.
If this happens in all workbooks, try opening a new blank workbook and test a simple formula. If formulas still don’t recalculate, an Office Quick Repair is a good next step, followed by an Online Repair if needed.
To help narrow this down, could you let us know:
- Are you using Excel on Windows or Mac?
- Does F9 / Calculate Now update the values?
- Does this happen in one workbook or all workbooks?
Please let me know if this proves useful to you, or if you would like further assistance.
I'm looking forward to your reply.
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