Excel to CSV: Export UTF-8 Comma-Separated Files Online

2026-07-06

  • Excel
  • CSV
  • export
  • UTF-8
  • online tool
  • tutorial

Why convert Excel to CSV

Many systems only accept CSV: bulk load, data platforms, legacy ERP imports, version-controlled config tables. xlsx is binary and awkward to diff; CSV is plain text. ComTools Excel to CSV (Tools/Excel/ToCsv) uploads a workbook and downloads UTF-8 .csv.

Conversion rules

Item Details
Input .xlsx, .xlsm, .xltx, .xltm, .csv (re-export normalized)
Worksheet First sheet only
Encoding UTF-8 output
Delimiter Comma ,
Special chars Fields with , or " are quoted; " → ""
Cell values Display text as shown in Excel

Example

Header Name,City, row Alice,NYC:

Name,City
Alice,NYC

Field with comma: "Acme, Inc",Boston

Steps

  1. Open Excel to CSV.
  2. Upload Excel or CSV.
  3. Click Convert.
  4. Download the .csv.

To go back to xlsx, use CSV to Excel.

Common scenarios

Scenario Notes
SQL import With Excel to SQL or LOAD DATA
Python pandas pd.read_csv(..., encoding='utf-8')
Git diff Text CSV diffs better than xlsx
One sheet only Split or move sheet first
Clean first Dedup, format

Encoding

  • Output is UTF-8—see CSV import tips if Excel desktop garbles on double-click.
  • Use Excel “From Text/CSV” with UTF-8, or CSV to Excel for a workbook.

Notes

  • First worksheet only—other sheets are omitted.
  • Values not formulas—formatted display text is exported.
  • Dates follow cell format; standardize before export.
  • Complex quoted fields—verify unusual multiline cells in Excel first.
  • Large files—filter columns in Excel if needed.
Direction Tool
Excel → CSV Excel to CSV
CSV → Excel CSV to Excel
Excel → JSON Excel to JSON
CSV text → JSON CSV to JSON (local)

Workflow

Edit Excel → CSV → third-party upload
           └→ SQL → database

FAQ

All sheets?
Split to separate xlsx files, then convert each.

Tab-separated TSV?
Comma only here; save TSV in Excel or use text format.

CSV in merge?
Merge needs xlsx—CSV to Excel first.

vs Save As CSV in Excel?
No install; consistent UTF-8 and quoting for server workflows.

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