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CSV ↔ Excel Converter

Convert CSV to Excel or XLSX to CSV online with encoding, delimiter detection and data preview. It accepts CSV files and XLSX files and produces CSV and XLSX. The operation uses the processing service when the selected conversion or transformation needs it.

Temporary workspace removed after processingFree · fair-use only
Before you startClear input, output, and processing details.
Input
CSV, XLSX
Result
CSV, XLSX
Capacity
Up to 100 files / 250 MB total
Privacy
Temporary workspace removed after processing

1. Add your input. 2. Choose settings. 3. Check the result and download it. Your original file is not changed on your device. Privacy details

Drop file files hereCSV · XLSX output · up to 100 compatible files

Saved settings — free

Reuse your preferred CSV ↔ Excel Converter setup. Recipes stay in this browser and never include files or entered text.

No settings saved for this tool yet.

Included free - no upgrade required

Run up to 100 compatible files (250 MB total), receive a ZIP when multiple results need packaging, and choose the download name.

Free Pro batch queue and export namingCSV→XLSXXLSX→CSVDelimiter detectionEncodingColumn preview
Kapan Anda memerlukannya
Preparing CSV and XLSX from CSV files and XLSX files without installing desktop software
Use the free batch queue for up to 100 compatible files; multiple outputs are bundled as a ZIP when needed.
Using CSV→XLSX, XLSX→CSV, and Delimiter detection for the specific result you need
Cara kerjanya

Choose CSV files and XLSX files, select the available options, then run CSV ↔ Excel Converter. The interface exposes the supported settings before creating CSV and XLSX. The operation uses the processing service when the selected conversion or transformation needs it.

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