Excel's spell check finds misspelled words in your spreadsheet

Spell check in Excel scans your cells for words that don't match the program's dictionary and flags them for correction. Unlike word processors, Excel doesn't underline errors as you type — you have to run the check manually. The spell checker catches typos in text, labels, and notes within your spreadsheet, but it won't catch words that are spelled correctly but used wrong (like "their" instead of "there").

Excel's spell check works the same way across Windows and Mac versions. When you run it, the program moves through your sheet cell by cell, stopping at each word it doesn't recognize. You can fix each error one at a time, ignore it, or add it to your personal dictionary if it's a word you use often.

Key Takeaways

  • Open the Review tab and select Spell Check to scan your entire spreadsheet for misspelled words.
  • When Excel stops on a flagged word, you can replace it with a suggestion, ignore it, or add it to your dictionary.
  • Spell check only catches words that don't match Excel's built-in dictionary — it won't catch correct words used in the wrong context.
  • You can add industry terms, proper nouns, or specialized words to your personal dictionary so Excel stops flagging them.

How to start spell check in Excel

Click the Review tab at the top of your Excel window. On the left side of the ribbon, you'll see a button labeled Spelling (Windows) or Spell Check (Mac). Click it to begin scanning your spreadsheet.

Excel starts from the cell you have selected. If you want to check the entire sheet, click any cell first to make sure you're not starting in the middle. The spell check dialog box will open and move through your data automatically, stopping at the first word it doesn't recognize.

What to do when Excel flags a word

When the spell check dialog stops on a word, you'll see the misspelled word highlighted in the spreadsheet and a list of suggested corrections in the dialog box. If one of the suggestions is correct, click it to select it, then click Change to fix that single instance. Click Change All if the same misspelling appears multiple times and you want to fix every occurrence at once.

If the word is spelled correctly but Excel doesn't recognize it — a company name, a technical term, or a person's name — click Ignore to skip it this time, or Ignore All to skip every instance of that word in the current session. If you use the word regularly, click Add to Dictionary and Excel will stop flagging it in future spell checks.

Understanding what spell check will and won't catch

Excel's spell checker catches obvious typos: "recieve" instead of "receive," "occured" instead of "occurred," or "teh" instead of "the." It works by comparing each word against its built-in dictionary, which includes common English words but not most proper nouns, brand names, or technical jargon.

Spell check will not catch words that are spelled correctly but used wrong. If you type "their" when you mean "there," or "its" when you mean "it's," the spell checker won't flag it because both words are real. It also won't catch numbers or formulas — only text in cells. If you need to find those kinds of errors, you'll have to read through your data yourself or use Excel's Find & Replace feature to search for specific text patterns.

Building your personal dictionary

Every time you click Add to Dictionary, Excel saves that word to your personal dictionary file. This file is specific to your user account on your computer. The next time you run spell check, Excel won't flag those words again.

This is useful for industry-specific terms, product names, or names you use frequently. If you work in medical billing, you might add "CPT" and "ICD-10." If you manage a spreadsheet for a company called "Acme," add it once and you won't see it flagged again. Keep in mind that your personal dictionary is tied to your user account — if someone else logs into your computer, they won't see your added words, and you won't see theirs.

Spell check options and settings

In the spell check dialog, you'll see a button or menu for Options (the exact name varies by Excel version). Click it to control what the spell checker looks for. You can tell Excel to ignore words in all capitals (useful if your spreadsheet has a lot of acronyms), ignore words with numbers in them, or ignore words that are already in the dictionary.

You can also choose which language dictionary Excel uses. If your spreadsheet contains text in Spanish, French, or another language, you can switch the dictionary to match. This prevents the spell checker from flagging every word in a language it doesn't recognize.

Why spell check doesn't run automatically in Excel

Unlike Microsoft Word, Excel doesn't underline misspelled words as you type. This is partly because spreadsheets often contain abbreviations, codes, and technical terms that would create constant false flags. A cell containing "SKU" or "API" would be underlined constantly, making the feature more annoying than useful.

Instead, Excel makes spell check something you run on purpose when you're ready to review your work. This gives you control over when to check and what to ignore, which is especially important in spreadsheets where non-standard text is common and expected.

Frequently Asked Questions

Can I spell check just one column or a specific range of cells?

Yes. Before opening the spell check dialog, select the range of cells you want to check. Click and drag to highlight the cells, or click the first cell, hold Shift, and click the last cell. When you open spell check, it will only scan the cells you selected instead of the entire sheet.

What if I accidentally added a misspelled word to my dictionary?

You'll need to edit your personal dictionary file directly. The location varies by operating system and Excel version. In Windows, it's usually in your user folder under AppData. In Mac, it's in Library. Search your computer for "custom.dic" to find it, then open it with a text editor and delete the word you added. Restart Excel and the change takes effect.

Does spell check work on formulas or just text?

Spell check only scans text in cells. It ignores formulas, numbers, and cell references. If you have a formula like =SUM(A1:A10), the spell checker won't look at it. It will check any text labels or notes in other cells.

Can I use spell check if I'm working on a shared spreadsheet?

Yes, but your personal dictionary additions won't sync to other users. When you add a word to your dictionary, it saves only to your computer. Other people working on the same file will still see that word flagged when they run spell check on their copy.

What languages does Excel's spell checker support?

Excel includes dictionaries for dozens of languages, including Spanish, French, German, Chinese, Japanese, and many others. You can change the language in the spell check options. If you're working with text in multiple languages, you may need to select each language section separately and run spell check with the appropriate dictionary.