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CSV ↔ Excel Converter

Convert CSV files to Excel (XLSX) and Excel to CSV with advanced options.

Runs in browserNo signupCopy or download result
Open editor

Editor

Adjust the asset, then export it.

Upload, paste, or preview the source, tune the options, and leave with a copy-ready or downloadable result.

Source

Upload, paste, or choose the asset to edit.

Preview

Adjust settings and inspect the visible output.

Export

Download, copy, or continue into a Studio.

Upload CSV or Excel file

Choose the file you want to convert or transform.

Supports CSV, XLS, XLSX files

Download the converted file or copy the processing summary.

Privacy: This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.

Editor workspace and output options

Export package

Keep the source file, review the generated file, then download the final version for sharing.

Input
Uploaded file, page range, conversion format, or quality setting.
Output
Generated document or converted file ready to download.
Review
Open the output once to confirm layout, pages, and formatting.

Usage tips

How to edit and export cleanly

Use CSV ↔ Excel Converter when you need to convert CSV files to Excel (XLSX) and Excel to CSV with advanced options.

Some formats can be handled locally, while complex conversions may use the secure converter service and delete files after processing.

Common use cases

  • Move a file into the format another app or teammate needs.
  • Convert documents for sharing, archiving, importing, or publishing.
  • Prepare data files before moving them between apps.

How to use it well

  1. Start in the tool area above and enter the smallest complete input that represents your task.
  2. Review the detected format and choose output options when available.
  3. Run the conversion and wait for the generated result.
  4. Download the output file and open it once to verify formatting.

Practical tips

  • Use original source files when possible instead of scanned or flattened exports.
  • For important documents, review page breaks, tables, images, and special characters after conversion.
  • Avoid uploading files that contain secrets unless the conversion is necessary.

Limitations to know

  • Complex layouts, embedded media, macros, and protected files may not convert perfectly.
  • File conversion quality depends on the source format and the features used inside the document.

FAQ

Q: What delimiters are supported?

A: Comma, tab, semicolon, pipe, space, and custom delimiters.

Q: Does it preserve formulas?

A: Excel to CSV loses formulas (values only). CSV to Excel creates values.

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Privacy: This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.