Category: Text

text/csv

text/csv is the IANA MIME type for tabular data formatted with comma delimiters as defined in RFC 4180.

MIME / CONTENT-TYPE

text/csv

ASSOCIATED EXTENSIONS

.csv

PRIMARY CATEGORY

Text

HTTP Headers & Web Server Configurations

Standard HTTP Response Header

Content-Type: text/csv; charset=utf-8

Send this exact header in HTTP responses to instruct browsers how to decode and render the payload.

Node.js / Express / Web API

res.setHeader("Content-Type", "text/csv; charset=utf-8");
res.setHeader("Content-Disposition", "attachment; filename=export.csv");

NGINX Configuration (mime.types)

types {
    text/csv csv;
}

Apache (.htaccess / httpd.conf)

AddType text/csv .csv

Security Advisory & Hardening

Guard against CSV/Formula Injection: Cells beginning with `=, +, -, @` can trigger arbitrary command execution when opened in Microsoft Excel or Google Sheets. Prefix untrusted cells with a single quote (`').

Frequently Asked Questions

text/csv Questions & Answers

Common questions regarding MIME types, Content-Type headers, and web server configurations.

The standard HTTP response header is: "Content-Type: text/csv; charset=utf-8".

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