CSV· 7 min read

CSV Delimiter Guide: Comma vs Semicolon vs Tab

A CSV delimiter is the character that separates fields. Most people expect commas, but Excel users often run into semicolon, tab, or pipe-delimited files depending on region, software, and import requirements.

What Is a CSV Delimiter?

In a comma-delimited file, each field is separated by a comma:

Name,Region,Revenue
Acme,North,45000

In a semicolon-delimited file, the separator is a semicolon:

Name;Region;Revenue
Acme;North;45000

Why Excel Sometimes Uses Semicolons

In some regional settings, the comma is used as a decimal separator. To avoid confusion, Excel may expect semicolons as list separators. That is why a CSV exported in one country may open incorrectly in another.

Which Delimiter Should You Use?

  • Comma: safest default for many systems and APIs.
  • Semicolon: useful for regions where comma is a decimal separator.
  • Tab: good when text contains many commas.
  • Pipe: common in data exports where commas and tabs appear inside values.

How to Convert Excel With a Specific Delimiter

The Excel to CSV Converter supports comma, semicolon, tab, and pipe delimiters. Upload your workbook, choose the sheet, select the delimiter, preview the output, and download the CSV.

Validation Checklist

After exporting, open the CSV in a plain text editor. Confirm that fields are separated correctly, quoted values are preserved, and accented characters or non-English text still look right.

Export Excel with the right delimiter

Choose comma, semicolon, tab, or pipe and preview before downloading.

Open Excel to CSV Converter →