What Is a .wsc File? .wsc Format, MIME & How to Open

Quick facts

Extension.wsc

File typeWSC Other

MIME typemessage/vnd.wfa.wsc

CategoryOther

Charset—

Compressible—

What is .wsc

What is a .wsc file?

A .wsc file is a WSC Other. It is a file format typically read and written by specialized applications.

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

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

How to open .wsc files

Use VS Code or xxd to open and edit .wsc 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: message/vnd.wfa.wsc

Common software that reads/writes .wsc:

VS Codexxd7-Zip

Relation chain

.wscextension of

format

WSC Otherserved as

mime type

message/vnd.wfa.wscsent via header

http header

Related extensions

Related MIME types

Common uses

Application-specific data

How to edit .wsc 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 .wsc files

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

Frequently asked questions

What programs can open .wsc files?

Common options include VS Code, xxd, 7-Zip. You can also open many of these files with built-in viewers or a browser.

How do I create a .wsc file?

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

What is the relationship between .wsc and the message/vnd.wfa.wsc MIME type?

message/vnd.wfa.wsc is the media type identifier used for .wsc files during network transfer (for example in the HTTP Content-Type header).

Sources & standards

Updated 2026-09-13

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