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October 29th, 2019OpenIV 3.2

Today we are happy to announce the release of OpenIV 3.2. Please, take a look:

What’s new in OpenIV 3.2

Grand Theft Auto V

In this release our main focus for Grand Theft Auto V was on adding support for more PSO files.

  • We added support for gtxd.ymt
  • We added support for credits.ymt
  • We added support for carmodcols.ymt
  • We added support for peds.ymt
  • We added support for playerspecialabilities.ymt
  • We added support for mapdatacullboxes.ymt
  • We added support for popgroups.ymt
  • We added support for all tunables ymt files:
    • combattasks.ymt, crimetasks.ymt, defaulttasks.ymt, dispatchtuning.ymt, generalevents.ymt, generaltasks.ymt, iksolvers.ymt, minimap.ymt, motiontasks.ymt, movementevents.ymt, movementtasks.ymt, pedtargetevaluator.ymt, physicstasks.ymt, playerinfo.ymt, playertargetting.ymt, randomevents.ymt, reactionevents.ymt, relationshiptuning.ymt, responsetasks.ymt, scenariotasks.ymt, servicetasks.ymt, shockingevents.ymt, situationalclipsets.ymt, soundevents.ymt, tacticalanalysis.ymt, vehicleaitasks.ymt, vehicletasks.ymt, wantedtuning.ymt, weaponevents.ymt, weapontasks.ymt, wildlifemanager.ymt
    • Those files are usually located in x64\data\tune folder.
  • We added support for movie subs ymt files. Those files are located in the moviesubs.rpf archives.
  • We changed the way how OpenIV reads different integer values from META/XML files. It should improve compatibility with user generated XML files.

Max Payne 3

  • We added support for .cut files. You can open and edit them as XML.
  • OpenIV will now open .cutsub (XML) files in the inbuilt text editor.

Grand Theft Auto IV

  • We fixed an issue where GTA IV SCO decompiler was unable to read SCO files properly.
  • We fixed an issue in Global Search where search for audio tracks did not worked as expected.

Package Installer – OIV Format 2.2

With OpenIV 3.2 we introducing new version of OIV Package Format – 2.2. There are two main changes in the new format:

  • Extended commands for editing XML files
  • Support for modifying GTA V PSO files using XML editing commands

You can find new format specification here on GitHub.

Global search

In this release, we made few improvements to the Global Search. First of all we significantly improved export speed from the search window. And for Grand Theft Auto V and Max Payne 3 we added audio tracks search:

General changes, improvements, and fixes

  • In the OpenIV main window, “Sort By” and “Group By” are now two separated options. The behavior of sorting and grouping is copying Windows File Explorer.
  • We fixed an issue where it was not possible to use undo in the Text Editor after failed save attempt.
  • We fixed an issue resulting in removed read only attribute from the files.
  • We fixed critical issue where OpenIV was not able to add new files into RPF archive if this archive has empty files.
  • We fixed an issue where OpenIV crash while importing models with empty high lod from openFormats.
  • OpenIV now uses HTTPS to download updates.
  • In the Audio Player OpenIV will mark audio tracks in red color if they were not loaded properly.

You can find change log for this version on our bug-tracker here.

UI Localization

We have an instruction how to translate OpenIV into your own language and we are calling for you to do so. You can find the localization guide on GitHub. As for existing localizations, here is the list of differences between 3.1 and 3.2.

Special thanks to our supporters

We want to say thank you to all our supporters on Patreon and other platforms.

This release is supported by:

  • _30
  • Bashar Chriebati

Thank you.

To learn more visit our Patreon page at https://www.patreon.com/OpenIV


If you already have OpenIV, it will ask you for update next time you run it. If you still do not have OpenIV, use the link below to download it right now.


Hello everyone,
As part of preparing our next OpenIV release, we decided to move OIV Package Format specification from our own wiki to GitHub repository.

Since Package Format specification was the only useful thing on our wiki, we are closing it.

If you have, any suggestions on how we can improve our documentation feel free to leave a comment or create an issue on GitHub.

Thank you and we see you soon…
OpenIV Team.

January 2nd, 2016OpenIV Documentation Wiki

Today we glad to announce new OpenIV Documentation Wiki.


Currently this Wiki contain detailed description of OIV Packages, both version, 1.1 and 2.0. With time, we will add openFormats documentation in this wiki. In addition, we will add detailed description about how to translate OpenIV into your language.
Since this is a Wiki, you also can contribute and improve it content, and even if you want, you can make a translation into your own language.


Some time ago we have released an OpenIV with openFormats for Max Payne 3 models, and today we are glad to release the new version of GIMS Evo plugin for 3Ds Max which allow you to import and export Max Payne 3 models.

Download GIMS Evo

Here you can watch a simple tutorial video, which show you the basics of how to work with GIMS Evo for Max Payne 3:

The last few weeks we had worked on one of the most required feature for PC version of GTA V. And now, we are proud to release OpenIV 2.6.4 with GTA V PC audio playback support. You are able to open any audio file or export it to .wav. Audio playback is a cool feature, but do you know what is even cooler? Audio editing. Yeah, many people want to change weapon or vehicle sounds and now, with a power of openFormats they are able to do so. Actually, you can edit any audio file in the game. Of course, we still have some unknown data in files, but now you can look at it or even try to change it to help figure it out. Here you can see simple “how to” video that explains basics of editing audio in GTA V:

Besides audio support, we made some improvements in other areas, as always you can find full change log here.


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