Open JAM file

The most commonly used .jam file type: Leisure Suit Larry Magna Cum Laude archive

What is jam file? Understanding and opening jam files

jam file icon Are you facing difficulties opening jam files on your computer, or wondering exactly what jam file is?
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.jam file type #1: Leisure Suit Larry Magna Cum Laude archive

Files with jam file extension could also be found as game data resource files from Leisure Suit Larry: Magna Cum Laude adventure computer game.

Further details

The jam file extension is associated with Leisure Suit Larry: Magna Cum Laude computer game, released by Sierra Entertainment in 2004. It is one of the last games of Leisure Suit Larry series.

The jam file contains resource data, used in the game.

In old (1996) computer game Grand Prix by Microprose, a completely different JAM format was also used. These .jam files contained textures.

Mods for Unreal Tournament 3 on Sony Playstation 3 also had JAM file extension, but were complete different format as well.

Open jam file with:

Leisure Suit Larry: Magna Cum Laude icon

Leisure Suit Larry: Magna Cum Laude

A lightly erotic 2004 computer game, part of the Leisure Suit Larry series

.jam file type #2: Altera ASCII text

A jam file extension is related to the Altera ASCII text file format used to store sourec code written in STAMPL (Jam Standard Test and Programming Language)

Further details

The jam file extension is used for one of the main files from Jam Standard Test and Programming Language (STAPL).

There are two kinds of .jam files.

  • JEDEC Jam STAPL format
  • Jam version 1.1 (pre-JEDEC format)

The JEDEC Jam STAPL format uses the syntax specified by the JEDEC Standard JESD-71A specification. Altera recommends using JEDEC Jam STAPL files for all new projects. In most cases, Jam files are used in tester environments.

The Jam Standard Test and Programming Language (STAPL) was created by Altera engineers and is supported by a consortium of programmable logic device (PLD) manufacturers, programming equipment makers, and test equipment manufacturers.  Jam STAPL was adopted as JEDEC standard JESD-71 in August, 1999.

JBC format is the compiled version of JAM format.

Open jam file with:

Quartus II design software

A design software is used to create applications for FPGA and CPLD devices

.jam file type #3: JAM Message Base format

Files with jam extension are associated with JAM Message Base Format. 

Further details

The jam file extension was used for JAM Message Base Format, one of the most popular file formats of message bases on DOS-based BBSes in the 1990s.

JAM stands for "Joaquim-Andrew-Mats" after the original authors of the API, Joaquim Homrighausen, Andrew Milner, Mats Birch, and Mats Wallin.

We are sorry, there is currently no software link record to open this jam file type.

.jam file type #4: Jam music score

A jam file extension is related to the Jam, a music notation software for Microsoft Windows operating system. A jam file stores music score.

Further details

The jam file extension is used by a free score editor called JAM. Probably no longer developed with latest version released in 2007.

The jam file contains notations in text form, that can be played as MIDI.

Old computer game Aladin also used .jam files, but these were just some sort of audio files.

Open jam file with:


A musical score editor

.jam file type #5: Line 6 Spider Jam audio

A jam file extension is associated with the Line 6 Spider Jam and JM4 Looper. A jam file stores audio data.

Further details

The jam file extension is used for files written by a Spider Jam, a guitar amplifier or JM4 Looper a sound editing device, which contains audio recording and all its associated settings.

It can only be used by one of these devices.

Open jam file with:


A simple program for converting JAM files to WAV

.jam file type #6: Unreal Tournament 3 for PS3 game mod

Files with jam file suffix are related to the Unreal Tournament 3 for Playstation 3. A jam file contains game mod.

Further details

The jam file extension is associated with the Unreal Tournament 3, a 3D first person shooter video game for Microsoft Windows and other platforms.

The jam file stores mod for Unreal Tournament 3, version for Playstation 3 video gaming console. It cannot be used on PC version of UT3.

Open jam file with:

Unreal Tournament 3 icon

Unreal Tournament 3

A first person shooter multiplayer computer game

What file extension actually is?

Simply put, file extensions are the characters after the dot in the computer file name, so for example document-name.pdf has file extension „pdf“. This helps Windows to identify which program should be used to open the file.

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