.j

Not to be confused with .J

MIME type: text/J

Is binary? No

Is encrypted? No

Can execute dangerous code? Yes

Related extensions: .J

Internet Media types: text/j

Uniform Type Identifier (UTI) public.j

Magic number ????????

.j is an uncommon file format. It is associated with multiple programming languages. Below are some definitions for it.

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Operating system: Any (MS-DOS, DR-DOS, Windows, Windows 9x, Windows NT, Linux, GNU/Linux, Classic MacOS, MacOS, MacOS X, OS X, iOS, Android, ChromiumOS, ChromeOS, OS/2, Solaris, FreeBSD, NetBSD, OpenBSD, DragonflyBSD, etc.)

To view the file, you will need an Objective-J interpreter, or a J-lang interpreter.

Other? Unknown

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Definition 1: J soure code

A j file can be source code for the J programming language.

Definition 2: Objective-J soure code

A j file can be source code for the Objective-J programming language.

Definition 3: Pseudo-extension

A pseudo-extension is a file format that is applied to a file, despite not having a purpose, other than to change the file name (such as Image.j) however this file extension is rarely used as a pseudo-extension

No other definitions

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Usage

J files are used to write in the J programming language.

J files can also be used to be exported to JavaScript using the cappuchino Objective-J framework.

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Opens with: Gedit, Notepad++ (GNU/Linux) Notepad, Notepad++ (Windows) ???, Notepad++ (MacOS) ???, Notepad++ (BSD) HTML Viewer (Android) ??? (iOS/iPadOS/iPhoneOS) ??? (OS/2) ??? (MS-DOS) ??? (DR-DOS) ??? (Solaris) etc.

Shebang? Unknown

Encoding: Any (commonly ASCII)

File icon

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GNOME 1: File not found