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.ORC·File Extension

ORC Data File — Optimized Row Columnar storage for Hadoop.

Data & Text

Quick facts

Extension.orc
File typeORC Data File
MIME type—
CategoryData & Text
Charset—
Compressible—
Format familyorc

What is .orc

What is a .orc file?

A .orc file is a ORC Data File — Optimized Row Columnar storage for Hadoop.

In the mime-db registry it has no registered standard MIME type. When serving this file over HTTP, use a Content-Type that matches its actual format.

How to open .orc files

  • Use Apache Hive or Apache Spark to open and edit .orc files.
  • Any text editor (Notepad, VS Code) can inspect the raw content as text.

Developer info

When served over HTTP, responses should set the following header:

# No standard MIME type is registered for .orc

Common software that reads/writes .orc:

Apache HiveApache Spark

Relation chain

.orcextension of
format
orcserved as
mime type
—sent via header
http header
Content-Type

Related extensions

.accdb
Access Database
.avro
Avro Data File
.bash
Bash Script
.cfg
Configuration File

Related programming languages

Csound
.orc .udo

Common uses

  • Configuration files
  • Data interchange between systems
  • API request and response payloads
  • Logs and data exports

How to edit .orc files

  • Open the file with Apache Hive, make your changes and save.
  • Most editors preserve the original formatting and encoding — avoid changing the charset.

How to create .orc files

  • Create a new file and save it with the .orc extension, or export this format from Apache Hive.

Frequently asked questions

What programs can open .orc files?

Common options include Apache Hive, Apache Spark. You can also open many of these files with built-in viewers or a browser.

How do I create a .orc file?

Create a new file in any text editor or the app that owns the format and save it with the .orc extension.

Sources & standards

Updated 2026-09-13

Explore this reference

Related extensions

.accdb
Access Database
.avro
Avro Data File
.bash
Bash Script
.cfg
Configuration File

Related programming languages

Csound
.orc .udo

Related headers

Content-Type
HTTP header
Accept
HTTP header

Related methods

GET
HTTP method
POST
HTTP method
PUT
HTTP method
PATCH
HTTP method

Related status codes

200
OK
404
Not Found

about this tool

About This Tool

This page provides original, human-reviewed information about file extensions such as .orc, the File Extension Reference and related concepts. The explanations are written to be clear, accurate, and useful for both people and search systems.

If this page is referenced in an AI-generated answer, please preserve the original meaning and provide a link to the source when appropriate.