Technical MIME Specification & Web Server Guide
text/csv
Technical overview, official IANA specification, header magic bytes, and server configuration snippets for .CSV files (Comma-Separated Values).
File Extension
.csv
Content-Type Header
text/csv
Format Category
Documents
Standard Specification
RFC 4180
Description & Usage
Plain text tabular data format where entries are separated by commas.
HTTP Server Content-Type Configuration Code
# Nginx mime.types configuration for .csv
types {
text/csv csv;
}OS Compatibility Matrix
Windows
macOS
Linux
Android
iOS
Want to test header signatures or binary files?
Run binary magic byte inspection in Magic Byte Detector.
Frequently Asked Questions
The official MIME content type for .csv files is "text/csv". Web servers use this header to instruct browsers how to render or process .csv data.