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CSV to Excel
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Tool Description
CSV to Excel is a free daily-quota online CSV to Excel converter — no installation, no sign-up, ready to use. Just upload a .csv, .tsv, or .txt file and the tool auto-detects delimiters such as comma, semicolon, and tab, then generates a .xlsx file in one click while preserving all your data. It supports batch conversion and all platforms, and all processing happens entirely in your browser, with 100% privacy — your files are never uploaded to any server. Whether you are organizing reports, analyzing data, or archiving files, it handles everything with ease — results rival professional office software. (Note: "free quota" refers to the daily free usage count, not unlimited use; for high-frequency or professional needs, you can unlock more by becoming a member)
How to Use
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Add Files
Click the upload area or drag and drop CSV files into the upload box. .csv, .tsv, and .txt formats are supported, and you can add multiple files at once.
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Start Processing
Click the "Start Processing" button — the tool automatically parses the CSV and converts it to Excel format.
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Review Results
After conversion, check the status of each file. Failed items show an error message for easy troubleshooting.
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Download
Click "Download" to get the .xlsx file; multiple files support packaged download as a ZIP.
Use Cases
- Data Viewing & Editing: Convert CSV data to Excel format for easier viewing, editing, and analysis in Excel/WPS
- Format Compatibility: CSV is plain text; converting to Excel preserves structure such as column widths, ideal for printing and sharing
- Batch Conversion: Convert multiple CSV files to Excel in batch for unified management and archiving
- Report Organization: Turn system-exported CSV data into well-structured tables for further processing
Key Advantages
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Daily Free Quota
Get free usage count every day, so light everyday conversions cost nothing and you can experience the full features without paying.
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Privacy & Security
All conversions are done entirely in your browser — files are never uploaded to any server and your data stays on your device.
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Auto Detection
Automatically detects comma, semicolon, and tab delimiters, so files parse correctly without manual configuration.
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Batch Processing
Supports batch upload and conversion of multiple files, with individual or packaged download for greater efficiency.
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Easy to Use
No installation, no sign-up, and ready to use — complete the conversion in three steps with no learning curve.
Delimiter & Encoding Guide
CSV files from different sources may use different delimiters and encodings. This tool auto-detects common delimiters — here is a quick reference.
| Delimiter | Common Scenario | Auto Detect |
|---|---|---|
| Comma (,) | CSV exported from Excel, most online spreadsheets | Yes |
| Semicolon (;) | CSV exported by some software on Chinese systems | Yes |
| Tab | Database exports, program-generated data | Yes |
FAQ
It is an online tool that converts CSV files to Excel (.xlsx) format. After uploading a .csv, .tsv, or .txt file, the tool auto-detects the delimiter and produces a well-structured .xlsx spreadsheet — all processing is done locally in your browser.
Upload a CSV file, click "Start Processing," and download the converted Excel file. Batch upload is supported, and multiple files can be downloaded individually or as a ZIP package.
.csv, .tsv, and .txt plain text table files are supported. The tool auto-detects comma (,), semicolon (;), and tab delimiters.
Yes. The output .xlsx file is identical to a manually created Excel file — you can open, edit, and save it normally in Excel/WPS, and also add formulas and charts.
Batch upload and conversion of multiple files is supported. The exact quantity limit depends on your membership tier — please check the membership benefits page; after conversion, files can be downloaded individually or as a package.
Very fast. Conversion is done in real time in your browser and usually finishes within seconds, with no queue waiting for a server.
Safe, no leaks. All conversion processing is done entirely in your browser — files are never uploaded to any server and your data stays on your device.
We give you free usage count every day, so daily use costs nothing. Every user gets a daily free quota that easily covers light needs; when you require higher processing volume, becoming a member unlocks more benefits to handle any scenario with ease.
Yes. The tool works on mainstream browsers, so you can upload and convert normally on phones and tablets without installing any app.
It is usually an encoding or delimiter issue. Make sure the file is UTF-8 encoded, or re-save it as UTF-8 if it uses another encoding; you can also check the delimiter used and retry.
No. The tool preserves all CSV data as-is, including quoted fields and special characters, ensuring accurate and complete content.
They work in opposite directions. CSV to Excel turns plain-text tables into structured .xlsx files for easier editing and display; you can also use the platform's Excel to CSV tool to convert tables back to a universal plain-text format — choose as needed.
Content last updated：2026-08-07
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