A daily updated filename extension database!

RELS file extension

The table below provides useful information about the .rels file extension. It answers questions such as:

  • What is the .rels file?
  • What program do I need to open a .rels file?
  • How can the .rels file be opened, edited or printed?
  • How can I convert .rels files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Microsoft Office 2007 Relationships

RELS file is a Microsoft Office 2007 Relationships. RELS file describes the relationships that begin the document structure. Called a relationship part.
Category: Document files
Application: Microsoft Office 2007
Mime-type: application/vnd.openxmlformats-package.relationships+xml
Magic number: -
Magic string: -
Sample: -
RELS aliases:
RELS related links:
RELS related extensions:
Microsoft Word AutoRecovery File

ClarisWorks Document

Data Interchange Format

Microsoft Word Document

Microsoft Word Document Template

Lotus Word Pro Document

Microsoft Word for Macintosh Document

Portable Document Format

Microsoft PowerPoint Presentation

Revisable-Form Text

Other types of files may also use the .rels file extension.

🚫 The .rels file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

els, rel, res, rls, rsls

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

EasyLanguage Storage
SHELX Chemical Model RES Data
3DCS Simulation Related List Data
MSC Patran Element Result
Godot Engine Binary Resource Data
Windows Resource File
Nokia 5510 Phone Recorded Audio
SymbianOS Localization Data
Abaqus/Standard Restart Data
PLINK Text Relationship Matrix

🔴 Can't open a .rels file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .rels file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .rels file extension, write to us!

🔴 Rate our RELS page

Please help us by rating our RELS page on a 5-star rating system below. (1 star is poor, 5 star is excellent)

4 of 5 stars (20 votes)
Thanks for voting!
Invalid vote.
Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
This page is available in the following languages: Český Deutsch English Español Suomi Français Magyar Italiano 日本語 Nederlands Norsk Português Român Русский Svensk 中文