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.G2W·File Extension

G2W Data & Text — A .g2w file is a G2W Data & Text. It is a text-based data format widely used for configuration files, data interchange and API payloads.

Data & Textapplication/vnd.geoplan

Quick facts

Extension.g2w

File typeG2W Data & Text

MIME typeapplication/vnd.geoplan

CategoryData & Text

Charset—

Compressible—

What is .g2w

What is a .g2w file?

A .g2w file is a G2W Data & Text. It is a text-based data format widely used for configuration files, data interchange and API payloads.

In the mime-db registry it maps to application/vnd.geoplan. When serving .g2w over HTTP, set the Content-Type header as shown in Developer info below.

Related entities: it maps to application/vnd.geoplan — and is delivered over HTTP via the Content-Type header.

How to open .g2w files

Use VS Code or Notepad++ to open and edit .g2w 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:

Content-Type: application/vnd.geoplan

Common software that reads/writes .g2w:

VS CodeNotepad++Sublime Textjq

Relation chain

.g2wextension of

format

G2W Data & Textserved as

mime type

application/vnd.geoplansent via header

http header

Related extensions

Related MIME types

application/vnd.geoplan

.g2w

Common uses

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

How to edit .g2w files

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

How to create .g2w files

Create a new file and save it with the .g2w extension, or export this format from VS Code.

Frequently asked questions

What programs can open .g2w files?

Common options include VS Code, Notepad++, Sublime Text. You can also open many of these files with built-in viewers or a browser.

How do I create a .g2w file?

Create a new file in any text editor or the app that owns the format and save it with the .g2w extension.

What is the relationship between .g2w and the application/vnd.geoplan MIME type?

application/vnd.geoplan is the media type identifier used for .g2w files during network transfer (for example in the HTTP Content-Type header).

Sources & standards

Updated 2026-09-13

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