Remove Duplicates in Excel
Identify duplicate customers, orders, and SKU records. Purges ghost spaces before key matching so nothing slips through.
Drop Excel (.xlsx, .xls) or CSV here
Supports up to 100,000 rows. Files are never stored or trained on.
Why Native Excel Remove Duplicates Fails
Excel's built-in tool requires exact byte matches. Ghost spaces, mixed case, and different phone formatting cause Excel to miss duplicate records.
Whitespace-Aware Matching
Normalizes non-breaking spaces (\u00A0) and trims invisible padding before evaluating row keys.
Compound Key Grouping
Match duplicates across multiple columns simultaneously, such as First Name + Last Name + City.
Visual Candidate Review
Examine every candidate row marked for deletion in the Diff table before committing the export.
Frequently Asked Questions
Clear answers about deduplicating Excel and CSV spreadsheets.
How does the AI Duplicate Remover detect duplicate rows?
The Agent analyzes primary identifier columns (such as Email, Phone Number, Customer ID, or Full Name). It strips trailing whitespace and standardizes letter casing so records like 'John Doe ' and 'john doe' are accurately caught.
Will deduplication accidentally delete important rows without asking?
No. The agent presents a detailed simulation and list of duplicate candidates before any deletion takes place. You can review candidates and decide whether to keep the first record or cancel.
Can I remove duplicates based on multiple columns?
Yes. You can match by single keys (like Email) or compound composite keys (like First Name + Last Name + Zip Code).
Does it support CSV and XLSX files?
Yes, both Microsoft Excel (.xlsx, .xls) and CSV files are fully supported up to 100,000 rows.
How much does it cost to clean duplicates?
Diagnostic scanning and candidate inspection are completely free. You only pay $4.90 for a Single Clean Job or use a 10-Job Pack when you download the deduplicated file.
How does it handle invisible characters in duplicates?
Standard Excel deduplication fails when cells contain hidden characters (like non-breaking space \u00A0). SheetClean AI purges invisible characters first before comparing row signatures.
Are my uploaded customer contacts stored on your servers?
Never. Your records are processed ephemerally in RAM and wiped after your session. We comply with GDPR and privacy standards.
What if I only want to keep the newest updated record?
You can toggle the retention strategy to keep the first seen record or the last seen record according to your spreadsheet sorting order.