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Opening a UTF-8 CSV in Excel (Convert to UTF-8 with BOM)

Published: Oct 19, 2026 | Updated: Oct 19, 2026 | About (Japanese)

Key points
  • Choose the CSV
  • Set the target to "UTF-8 with BOM"
  • Save and open in Excel

Some versions of Excel garble UTF-8 files that have no BOM. Adding a BOM with Convert Text Encoding makes them open more reliably.

Steps

  1. Choose the UTF-8 CSV file
  2. Under "Convert to" choose "UTF-8 with BOM (for Excel)"
  3. Open the saved file in Excel
A BOM can add an extra character at the start when files are loaded by programs or web systems. Choose to suit the purpose.
Use "Convert Text Encoding (Fix Garbled Text)" (free)

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