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Convert csv to xlsx

Convert your CSV Spreadsheet Data (CSV) into Microsoft Excel Workbook (XLSX) instantly in your browser.

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Quick Answer

Yes, OmniTools converts CSV to XLSX directly in your browser with zero registration or payment required.

Upload CSV file

Automatic format detection • 100% in-browser processing

Max size: 100MB•100% In-Browser Privacy
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How to Convert CSV to XLSX

1

Step 1

Drop your CSV file into the dropzone or click to browse from your device.

2

Step 2

Choose output quality, dimensions, or compression options if you wish to customize the output.

3

Step 3

Click Convert and save your new XLSX file immediately.

CSV vs XLSX: Key Differences

CSV Spreadsheet Data

Comma-Separated Values tabular data format readable by spreadsheet and database systems.

Extensions: csv

Microsoft Excel Workbook

XML-based spreadsheet file format native to Microsoft Excel.

Extensions: xlsx

Frequently Asked Questions

Simply drag and drop your CSV file into the converter above, customize any quality or dimension settings if desired, and click "Convert". Your XLSX file will be generated instantly and ready for download.