All about MLI Files

The MLI file type is primarily associated with 7-Zip.

MLI	File extension: MLI
	File type:	license file

What is an MLI file?

MLI files mostly belong to 7-Zip. Gaming Machine License Files: These MLI files sometimes use a ZIP structure to store licensing data for gaming machines. The file holds key elements that the system reads to verify authorization.

Managed automatically by specialized gaming software

Often opened with a compression tool like 7-Zip

OCaml Interface Definition Files
Other MLI files work as interface definitions in the OCaml programming environment. They are plain text files that list module interfaces, helping to separate declarations from implementations.

Can be viewed in any text editor

Used for type checking and module separation (OCaml official site)

3D Rendering Material Files
Some MLI files act as material files for 3D rendering. They store data about surface properties like texturing and shading, and are used with applications such as 3D Studio Max and Bryce 3D.

Loadable in 3D software for material editing

Documentation available on Autodesk’s site (Autodesk 3ds Max Overview)

FilExt.com note: Each version serves a distinct purpose. Check your file’s content to decide whether it should be treated as a compressed archive, a code definition, or 3D material data.

How to open an MLI file

You need a suitable software like 7-Zip to open an MLI file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your MLI file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a MLI file directly in the browser:. Just drag the file onto this browser window and drop it.

Online MLI Text Viewer

Choose your .mli file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert MLI files:

7-Zip
See the previous paragraphs to learn more about the main application. MLI files are often referred to as 7-Zip games because this type of file is primarily created or used by this software.
3D Studio (Material-Library File) by Autodesk, Inc.
AutoCAD (Material-Library File) by Autodesk, Inc.
The identifying characters used for this association are - Hex: AA 3D, ASCII: .=. Program ID is AutoCADRenderMaterialsLibrary
Camomile
Camomile is a comprehensive Unicode library for objective caml (a.k.a. OCaml or O'Caml) language. The library is currently designed for Unicode Standard 3.2. This is a GNU licensed item.
Encyclopedia Media List
F# (Source Code) by Microsoft Corporation
F# (pronounced F Sharp) is a scalable, succinct, type-safe, type-inferred, efficiently executing functional/imperative/object-oriented programming language. It aims to be the premier type-safe functional programming language for the .NET framework and other implementations of the Ecma 335 Common Language Infrastructure specification. F# was partially inspired by the OCaml language and shares some common core constructs with it. The inputs to the F# compiler or the F# Interactive dynamic compiler consist of source code files, with extensions .fs, .fsi, .ml, .mli, .fsx, .fsscript. Files with extension .fs, .ml must conform to grammar element implementation-file. Files with extension .fsi, .mli must conform to grammar element signature-file. Files with extension .fsx and .fsscript are processed just as for those with extension .fs except that the conditional compilation symbol INTERACTIVE is defined instead of COMPILED, the assembly FSharp.Compiler.Interactive.Settings.dll is referenced by default, and the namespace Microsoft.FSharp.Compiler.Interactive.Settings is opened by default. This file format is classified as Source Code. Related links: F# Download, Exploring the FSharp Language Series

Technical Data for MLI File Extension

File classification:

Game

Related files:

ml, mll, mly, mtl, lic, zip, fsx, fsi, fsscript

Mime type:

text/x-ocaml

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: AutoCADRenderMaterialsLibrary, FileType: AutoCAD Render Materials Library

ProgramID: Enc95.MList
EXEFile: C:\ENCARTA\ENCART95.EXE /m%1

ProgramID: Enc95.MList
EXEFile: D:\ENCARTA\ENCART95.EXE /m%1

ProgramID: Enc97MediaList
EXEFile: %ProgramFiles%\Microsoft Reference\Encarta Encyclopedia\ENC97.EXE /M %1

ProgramID: Enc98MediaList
EXEFile: %ProgramFiles%\Microsoft Reference\Encarta Encyclopedia\ENC98.EXE /M %1

ProgramID: Enc99MediaList
EXEFile: %ProgramFiles%\Microsoft Reference\Encarta Encyclopedia\ENC99.EXE /M %1

ProgramID: Enc96MediaList
EXEFile: %ProgramFiles%\Microsoft Reference\Enc96Enc\enc9632.exe /M %1

ProgramID: Enc98MediaList
EXEFile: %ProgramFiles%\ENC98.EXE /M

ProgramID: Enc95.MList
EXEFile: %ProgramFiles%\ENCARTA\ENCART95.EXE /m%1

ProgramID: Enc96MediaList
EXEFile: %ProgramFiles%\Microsoft Reference\Encarta 96 Encyc\enc9632.exe /M

Show all 10 listings To Top

an mli license file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with MLI files

Associate the MLI file extension with the correct application.
Update your software that should actually open license files. Because only the current version supports the latest MLI file format. Search, therefore, e.g. on the manufacturer website after an available 7-Zip update.
To make sure that your MLI file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .MLI file online - secure, fast, and no downloads needed.