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OpenIV 2.8
Current version:4.0.1 (Build: 1452; Build Date: 06/24/2020)
Developed by:OpenIV Team
Supported games:GTA V, GTA IV, Max Payne 3, Red Dead Redemption 2
Type:IMG and RPF Archive manager, Texture importer/exporter, Scripts decompiler, Mod installer
Initial release:December 28, 2008
Development status:Active
Next version:Unknown
Languages:Chinese, English (United Kingdom), French, German, Greek, Hungarian, Portuguese (Brazil), Russian, Spanish, Ukrainian

OpenIV is a multi-purpose editor and archive manager for RAGE engine-based games such as GTA V, GTA IV/EFLC and Max Payne 3, developed by OpenIV Team. Development of this tool began shortly after the Xbox 360 release of GTA IV. The first public version was released on December 28, 2008. Since version 1.0 OpenIV also supports another game made by Rockstar Games - Max Payne 3. Since version 2.0 OpenIV became one of the world's first tools to work with GTA V's new file formats. OpenIV won the Best Tool award in GTAForums Annual Awards 2016[1].


This section is incomplete. You can help by fixing and expanding it.

Red Dead Redemption 2

With OpenIV 4.0 was introduced very basic level of support for Red Dead Redemption 2. First of all, currently, there is no editing capabilities. With OpenIV 4.0 you will not be able to edit any RDR 2 files.

Since this is the first release with Red Dead Redemption 2 support, available features also very limited. With OpenIV 4.0 you can:

  • Open and view RDR 2 RPF archives. (Not all file names are available, see below)
  • Open and view RDR 2 Textures (.ytd)
  • Open and view RDR 2 META/PSO files (.ymt, .ymf, .yas, .ych, .ymap .ytyp)
  • Open and listen to RDR 2 Audio files (.awc)
  • Open and view RDR 2 Language files (.yldb)

Support for Red Dead Redemption 2 will be expanded in the future versions.

RDR 2 RPF Archives support Few things you need to know:

  • New RPF8 archives does not have names for their entries, only hashes;
  • It is possible to harvest file names from the game itself. Just like GTA V, RDR 2 has many META, XML and PSO files that contain names of the files and archives. We already have some archives where all the file names are known.
  • Currently OpenIV 4.0 has a very limited database of the file names, we are hoping to grow list of the known names with every new update in the future.

Grand Theft Auto V

Grand Theft Auto IV

  • Creating and editing IMG archives (version 3)
  • Creating and editing RPF archives (version 2 and 3)
  • Inbuilt viewers for common GTA IV & EfLC files (text, images etc)
  • Inbuilt player for GTA IV audio files
  • Inbuilt SCO script decompiler (hight level code generator)
  • Inbuilt WTD Texture editor (creating, editing, properties changes etc)
  • Global search in all game archives and sound files
  • 3D Placement Search
  • 3D Viewer of models files - WDR, WDD, WFT, WPFL
  • 3D Viewer of collision files - WBN, WBD
  • 3D Viewer of NavMesh files - WNV
  • 3D Animation viewer - WAD
    • Ped animations
    • Map objects animations
    • Cutscenes player
  • openFormats support to Import/Export GTA IV/EfLC resources in the 3D editors (for example, 3Ds Max)
  • Text based format for easy WPL editing
  • Inbuilt GXT file viewer, export to text
  • Text based format for easy GXT editing
  • Package Installer support for easy mod installation

Grand Theft Auto IV: Complete Edition support

Recently Rockstar Games updated GTA IV to Grand Theft Auto IV: Complete Edition and now we provide better support for this version:

Was added ability to view Episodes (The Lost and Damned and The Ballad of Gay Tony) animations and cut scenes when OpenIV work with GTA IV: Complete Edition. Was fixed an issue where it was not possible to run GTA IV: Complete Edition from OpenIV. Was added more key names for GXT entries.

Max Payne 3

  • Creating and editing RPF archives (version 4)
  • Global search in all game archives
  • 3D Viewer of collision files - WBN, WBD
  • 3D Viewer of NavMesh files - WNV
  • Inbuilt WTD Texture viewer
  • Inbuilt viewers for common Max Payne 3 files (text, images etc)
  • Inbuilt GXT file viewer, export to text
  • Inbuilt player for Max Payne 3 audio files - AWC
  • 3D Viewer of models files - WDR, WDD, WFT, WPFL
  • Text based format for easy GXT editing
  • Package Installer support for easy mod installation


The openFormats are a set of open, text-based, intermediate file formats that allows users to export/import GTA IV/EFLC and GTA V resources into different 3D modeling programs like 3DS Max. Currently you can import/export openFormats files into 3DS Max with GIMS IV (GTA IV) or GIMS Evo (GTA V). The formats are similar in concept to .WSO files used in The Sims Resource Workshop, being that the latter also implements an intermediate format for easier resource editing.

Tools and Services

ASI Manager

The tool named �ASI Manager� allows you to easily install or uninstall ASI Loader and ASI plugins for GTA V.


The OpenIV.ASI gives you ability to keep original GTA V files safe and put mods into special �mods� folder. Just put archive (for example, x64a.rpf) you want to mod into �mods� folder and made changes in that copy. OpenIV.ASI will force game load your archives form �mods� folder. In addition, if you want to switch back to original files just remove OpenIV.ASI and ASI Loader using ASI Manager.


A special web service called WebIV was designed and created for OpenIV. It is intended to help developers to collect information about program usage, get users feedback and also for the users to stay tune and be aware if a newest version is out.

Version history

Version 2.9 (with openFormats)

Released on March 25, 2017

  • Grand Theft Auto V (PC)
    • Inbuilt Text Editor
    • Support for .ymap, .ytyp, _manifest.ymt, carcols.ymt and levels.ymt
    • Improved openFormats for Grand Theft Auto V
    • Search improvements
    • UI Improvements and bug fixes

And more

Previous versions