Unmerge & Fill, Automatically

Paste or upload Excel with merged cells. We instantly unmerge and fill.
no steps, no configs, 100% local.

🎯 Paste, Done ⚡ Instant Results 🔒 Local Processing Only 📊 Works with Any Excel Data

See the Magic: Split Merged Cells and Fill Empty Data

Before: Excel Data with Merged Cells (Hard to Process)

DepartmentEmployeeQ1 SalesQ2 Sales
Sales John Smith7500082000
Sarah Wilson6800071000
Mike Johnson7200076000
Marketing Lisa Brown8500089000
Tom Davis6200065000

❌ Empty cells from merged ranges

30 secondsvs manual work

After: Clean Data Ready for Analysis

DepartmentEmployeeQ1 SalesQ2 Sales
SalesJohn Smith7500082000
SalesSarah Wilson7200076000
SalesMike Johnson6200065000
MarketingLisa Brown8500089000
MarketingTom Davis6200065000

✅ Clean data - ready for any analysis tool

How It Works: Merged Cell Detection & Expansion

When you paste or upload a spreadsheet, our tool scans for two types of merged cells: row merges (a single value spanning multiple rows) and column merges (a single value spanning multiple columns). It then expands each merged region by copying the anchor value into every cell that was covered by the merge, producing a clean, rectangular table.

Worked Example

In the table below, "Sales" is merged across three rows. After unmerging, each row gets its own "Sales" value:

Before (Merged)

DepartmentEmployeeRevenue
SalesAlice42000
Bob38000
Carol45000
MarketingDave51000
Eve47000
Auto-detectno config needed

After (Filled)

DepartmentEmployeeRevenue
SalesAlice42000
SalesBob38000
SalesCarol45000
MarketingDave51000
MarketingEve47000

After expanding, the tool also fills any remaining blank cells by inheriting values from the nearest non-empty cell above — a process sometimes called "fill down." The result is a fully populated table ready for formulas, pivot tables, or database import.

Why Merged Cells Cause Problems

Our tool handles all of this automatically — paste your data, and get a clean table in seconds. No configuration, no manual filling, no formulas needed.

Paste or Upload — We’ll Auto Unmerge & Fill

📋 Paste your table here or drop a file. Processing happens automatically in your browser.

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Drop your Excel file here or click to browse

🔒 Files processed locally - never uploaded to servers

Supports: Excel (.xlsx, .xls) and CSV files up to 5MB

Resources & Guides

📘

What Is Unpivot in Excel

Clear definition with examples and when to use unpivot to transform wide to long format.

Read Article
🧭

How to Unpivot Data in Excel

Step-by-step tutorial for Excel Power Query and the fastest online method.

Read Tutorial

Why Use Our Unmerge & Fill Tool?

Instant Processing

No need to manually fill hundreds of empty cells. Our tool automatically detects and fills merged cell data in seconds, saving you hours of tedious work.

🎯

Paste, Done

Just paste or upload and it's done. No buttons to click, no complex formulas, no learning curve required.

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100% Private & Secure

All processing happens locally in your browser. Your Excel data never leaves your computer - no uploads, no storage, no privacy concerns.

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Completely Free

No subscription fees, no usage limits, no hidden costs. Access all unmerge and fill features forever without any payment or registration.

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Works on Any Device

Use our tool on desktop, tablet, or mobile. Responsive design ensures perfect functionality across all devices and screen sizes.

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No Learning Required

Intuitive interface designed for everyone. No technical skills needed - just paste, choose, and copy. Get results in seconds.

Perfect Solutions for These Common Excel Challenges

📊

Financial Reports

Problem: Excel reports with merged cells make data analysis impossible.

Solution: Split merged cells and fill empty data for clean analysis.

🏢

Sales Data

Problem: Department headers merged across multiple rows.

Solution: Split and fill to create proper data structure for analysis.

📈

Survey Results

Problem: Category headers merged in survey data.

Solution: Clean data for statistical analysis and reporting.

Frequently Asked Questions

What happens after I paste?

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We automatically unmerge cells and fill remaining blanks from above. Results appear below the editor ready to copy or download.

Can I turn off filling?

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Not at the moment. The tool always unmerges and fills to produce a clean, analysis-ready output.

Is my Excel data really safe and private?

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Yes! 100% local processing means your Excel data never leaves your browser. No uploads to servers, no data storage, no tracking cookies. Your privacy is completely protected.

What Excel file formats can I process?

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Upload Excel (.xlsx, .xls) or CSV files, or paste data directly from any spreadsheet. After processing, download as Excel or CSV for use in any application.

Do I need to create an account?

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No registration required! Just visit the page and start processing Excel data. No passwords, no emails, no personal information needed. It's truly free and anonymous.

Are there any file size limits?

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Excel files up to 5MB are supported, which covers thousands of rows. Since processing happens in your browser, very large Excel files may be slower depending on your device's performance.