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Select an ordinary XLSX worksheet or UTF-8 CSV, preview its data and convert the file format.

Supports ordinary XLSX and UTF-8 CSV: up to 8 MiB per file and 16 MiB combined.

Ordinary data tables only: no formulas, macros, merged cells, external links or original styling. The first row is the header. Select one worksheet per file.

XLSX exports preserve cells as text. Potential formulas in CSV receive an apostrophe prefix. Check the preview and downloaded result.

Preview and results

After processing is complete, the results will be displayed here.

Instructions for use

  1. Select an XLSX or UTF-8 CSV. Set the CSV delimiter if needed, then read the table.
  2. Select a worksheet, check the first 20 rows and choose the export format.
  3. Convert and download the new file. Styling is not retained; formulas and macros are not processed.

Input and output examples

Example input
data.xlsx → Data
Example output
data.csv

These are demo inputs and sample results, and do not mean that your data has been processed.

Calculation basis and reference materials

Up to 8 MiB, 10000 data rows and 100 columns per file. No formulas, macros, merged cells, external links or styling. XLSX exports text cells; CSV prefixes potential formulas with an apostrophe.

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