Opening a PROP File

The PROP file type is primarily associated with Notepad.

PROP	File extension: PROP
	File type:	configuration file

What is a PROP file?

PROP files mostly belong to Notepad. PROP files are plain text configuration files that hold key-value pairs for various systems and applications.

Game Data: Used by Telltale Tool games (such as Telltale game data and Minecraft game data) and by engines like Unity, these files store game settings and configuration details.

Android Build and System Properties: Employed in Android environments, they record build configurations, device properties, and system settings used by tools like Android Studio and the Android Debug Bridge (adb). More details can be found at Android's official documentation or the Android Studio site.

Program Preferences: Programs like Adobe Photoshop use Java properties files (PROP) to retain user and program settings.

Module and System Metadata: Magisk modules and other system utilities rely on PROP files to store encrypted or secure configuration data.

FilExt.com tip: These files follow a simple key=value syntax and can be viewed or edited with a basic text editor. It helps to check the specific documentation for each software piece, as interpretations and additional formatting (like embedded JSON structures) may be applied.

How can I open a PROP file?

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

Online PROP Text Viewer

Choose your .prop file to analyze

or drag and drop it here

Online File Viewer

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PROP file format:

The file format determines how the data is stored in the file. The file format can be determined based on the file extension and the signature (the first few characters of a file). If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. So a detailed analysis of a file is vital in order to determine the format and the associated program. Our analysis of the PROP files produces the following result:

As a file extension, PROP isn't very common and includes many different file formats. The two most popular formats are as follows:

• 15% of all PROP files save the data in config file format. A configuration file is used by computer software to store settings. It consists of a text-based content with a structure and syntax comprising key–value pairs for properties, and sections that organize the properties. If you open these files in a text editor, you can view and read the content yourself. Most of these files are 1 KB to 4 KB in size. The following keywords are characteristic: # autogenerated by buildinfo.sh, # begin build properties, display, incremental and version. A common filename is build.prop.
• 9% of all PROP files have the same signature 6VSM. They consist of illegible, cryptic characters. A typical file size is 12 KB. The files contain the following words: 6VSM. A common filename is prefs.prop.

The remaining 76% of all PROP files are files with no common format, the following 5 formats exist: JSON and VSM. Tagged as settings, setting, game, module or system. Drag & drop your file here to see the file format and a preview of your PROP file!