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Remove Duplicates and Clean Data Template

Strip duplicates, fix casing and trim whitespace in one pass — turn a messy export into a clean file without touching a formula.

Preview of the Remove Duplicates and Clean Data Template dashboard in DataHub Pro — KPI tiles and charts built from the sample data
What the Remove Duplicates and Clean Data Template looks like once your file is loaded — every tile is live and exportable.
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Opens in your browser with sample data · export to Excel any time · your data stays yours

Prefer the spreadsheet? Fuzzy Name Matching Between Two Lists · Remove Duplicates and Clean Data Template — free with an account, 3 free downloads.

See inside before you download: Fuzzy Name Matching Between Two Lists · Remove Duplicates and Clean Data Template

remove-duplicates · sample dataResult
Rows in
8,420
Duplicates removed
412
Rows out
8,008
Fields cleaned
3

What's inside this template

✓
One-pass cleanDuplicates, casing and whitespace together.
✓
Before/after countsSee exactly what changed.
✓
Choose the keyDe-dupe on any column.
✓
Export the clean fileReady to use.

How it works

Open the template

It loads with realistic sample data so you see a finished result immediately — nothing to set up.

Swap in your data

Type over the sample values, or upload your own file and map the columns in a couple of clicks.

Read, export, share

The Data Cleaner recalculates instantly. Export to Excel or send a live link.

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Common questions

How do I remove duplicates across multiple columns?

Choose the columns that together define a duplicate — email alone, or name plus postcode. Deduplicating on the whole row misses the near-identical records that are the actual problem.

What else does cleaning cover besides duplicates?

Trimming whitespace, normalising casing, and standardising date and number formats. Those three are what make 'the same' value fail to match across two files.

Can I see what was removed before committing?

Yes — the removed rows are shown rather than silently dropped, so you can confirm a duplicate really was one before saving the cleaned file.

Start from the De-dupe & clean a file template

Open it with sample data, swap in your own, and export in seconds — no formulas, no blank page.

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No card required · works in your browser · export any time