All about REL Files

The REL file type is primarily associated with OpenIV.

REL	File extension: REL
	File type:	data file

What is a REL file?

REL files mostly belong to OpenIV. REL files are used for many purposes. They do not follow one universal format and can contain different kinds of information.

Game files: In games like GTA V and Gran Turismo, these files hold assets and game data. Tools such as OpenIV let you open and modify them safely.
Tax documents: In Italy, some REL files store tax receipts and tax return data for agencies like Agenzia delle Entrate and are processed with Entratel software. More information is available on their official sites: Agenzia delle Entrate and Entratel Portal.
Development objects: For systems such as the Nintendo 64, REL files are relocatable object files used by a linker during software development.
Other uses: Some REL files also serve as update patches or external links in various software projects.

FilExt.com note: The file’s structure depends on the software that created it. Use the appropriate tool to open or edit your file so that you do not disrupt its function.

How can I open a REL file?

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

Online REL Text Viewer

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Programs that open and convert REL files:

OpenIV
See the previous paragraphs to learn more about the main application. REL files are often referred to as OpenIV games because this type of file is primarily created or used by this software.
ACT! (Alarm Data File) by Best Software CRM Division
Windows ver 6, 5, 4, 3. Popular contact management software.
Knowledge Explorer Knowledge Representation Relation
Nokia Phone (Audio File) by Nokia
Norton Internet Security (2001 Log File) by Symantec Corporation
Norton Internet Security 2001 logs attacks and alerts to the files: PROGRAM FILES\NORTON INTERNET SECURITY\IAMFW.REL and \PROGRAM FILES\NORTON INTERNET SECURITY\IAMALERT.REL respectively. Related links: Vulnerability
PDP-10
The PDP-10 was a mainframe computer manufactured by Digital Equipment Corporation (DEC) from the late 1960s; the name stands for Programmed Data Processor model 10. The PDP-10 was eventually eclipsed by the VAX supermini machines. The PDP-10 product line cancellation was announced in 1983. Related links: Wikipedia PDP-10 Page
Retrieve 4GL Dataset File by Sage Enterprice Solutions
The Retrieve 4GL product is used in the creation of many different large database applications so this extension and its link to Retrieve 4GL may show up in products from many companies.
Wii (Relocatable Module) by Nintendo
The Wii is the fifth home video game console released by Nintendo. The console is the direct successor to the Nintendo GameCube. Relocatable modules are specially built executable files that is used in a similar manner to DLL files on the Wii. Related links: WiiBrew Homebrew Wiki, USB Gecko Wii Coders Tool

REL file format:

Each file has a definite file format, that is, how the stored data is arranged in the file. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. So you need a detailed analysis of a file to find out the format and the associated program. Below is our analysis of the REL files:

The REL extension is quite commonly used. The file itself is used by different programs with different formats. The following file formats are most commonly found in REL files:

25% of all REL files start with the bytes 97 00 00 00, which are crucial for this file format. The contents of these files cannot be read by a human; only a computer program can interpret the data. The files are on average 830 bytes in size and range from 830 bytes to 870 bytes. The file type was created recently. The following filename is common: brabus850_game.dat151.rel or r35sound_game.dat151.rel. Files like these are sometimes connected to game, sound, brabus, cracklemod, dlcr, toysupmk and rotary.
10% of all REL files use the same file format, which can be identified by the letters "36 00 00 00" at the beginning. If you open these files in a text editor, you will see only illegible characters. The files are on average 2 KB in size and range from 1 KB to 4 KB. r35sound_sounds.dat54.rel or m5cracklemod_sounds.dat54.rel is a typical file name. Files like these have the following tags: sounds.

The remaining 65% of all REL files are different files with different signatures, often e.g. SNR. The category is wmsirens, audioconfig, dlcbattle, dett, categories, dlcluxe, elegyx, mercm, code or drug. Just click the "Choose your .rel file to analyze" button on this page to find out what your REL file is.

Technical Data for REL File Extension

File classification:

Game

Related files:

o, rpf, lib, awc, dat54, nametable, rels, p7m, dat, rle, zip, rar, str, atn, trd, arc, lz, gfx, ffdata, bin, rpy, txt, rpyc, ndb, hdb, lcs, xml, obj

Mime type:

application/octet-stream

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: dswin.document
EXEFile: %ProgramFiles%\DSwin32\Dswin32.exe

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

How to solve problems with REL files

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