All about YMF Files

The YMF file type is primarily associated with OpenIV.

YMF	File extension: YMF
	File type:	manifest file

What is a YMF file?

YMF files mostly belong to OpenIV. YMF files are used by Rockstar Games for GTA V. They are internal manifest files that list game assets and data required by the game engine.
These files store structured information such as map layouts and object references.
They are usually managed with tools like OpenIV and Ymap Converter.

This file is not intended for casual edits

Backup your files before modifying them

The internal format is mostly undocumented

FilExt.com tip: Handle these files with care to avoid corrupting game data.

How to open a YMF file

You need a suitable software like OpenIV to open a YMF 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 YMF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a YMF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online YMF Text Viewer

Choose your .ymf file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert YMF files:

OpenIV
See the previous paragraphs to learn more about the main application. YMF files are often referred to as OpenIV games because this type of file is primarily created or used by this software.
Grand Theft Auto V
A *.YMF file is a data file primarily associated with Rockstar Games titles, notably Grand Theft Auto V. It serves as a manifest file, containing data related to the game's resources and assets. The internal structure of a *.YMF file is proprietary and complex, often involving compressed and serialized data. Tools like OpenIV can be used to extract or manipulate the contents of these files, allowing for modifications and analysis of game data. This file format is classified as Game Data.

YMF file format:

The file format, which is the arrangement and type of data in a file, determines which program can open the file. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. If the file extension or signature does not match the file format, errors will occur when opening or editing the file. So you need a detailed analysis of a file to find out the format and the associated program. In the following you will find our evaluation of the YMF files:

The YMF file extension is rarely used and mainly uses a defined YMF format. The two most common formats are as follows:

96% of all YMF files use the same file format, which have the signature PSIN. They consist of unreadable binary data. The files are 480 bytes to 1 KB in size, with a median of 910 bytes. This file type is based on cutting-edge technology. Several words can almost always be found in the files, e.g. PSIN and pppppppp. An example of a file name is _manifest.ymf. These files are often associated with manifest and cayo.

The remaining 4% of all YMF files are different files with different signatures. If you want to find out what your YMF file contains, drag and drop it onto this page.

Technical Data for YMF File Extension

File classification:

Game

Related files:

ymap, ydr, ybn, ytd, ysc, ytyp, clip, asi, ymt

a ymf manifest file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with YMF files

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