A rels file extension is related to the Microsoft Open Office XML relationships file format.

Detailed description

Software that works with rels file extension

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RELS file - Microsoft Open Office XML relationships data

What is rels file? How to open rels files?

File type specification:

Document file type icon Document file type

The rels file extension is related to Microsoft Office and used for Office Open XML format.

It is an international, open standard for word processing documents, presentations, and spreadsheets that can be freely implemented by multiple applications on multiple platforms.

The default software associated to rels file type:

Microsoft Word icon

Microsoft Corporation logoMicrosoft Word  Microsoft Windows software

Company or developer:
Microsoft Corporation

A popular word processor that started with Word for MS-DOS in 1983 and for year is now a core application of Microsoft Office suite. Microsoft Word offers powerful word processing and text editor features that allow users to easy create high quality documents.

Almost every, if not every, computer user knows .doc and .docx Word documents.

Microsoft Excel icon

Microsoft Corporation logoMicrosoft Excel  Microsoft Windows software

Company or developer:
Microsoft Corporation

A popular spreadsheet application distributed with Microsoft Office suite, Excel is offers calculating, contains graphing tools, pivot tables and own programming language based on Visual Basic.

Excel supports charts, graphs or histograms generated from specified groups of cells. Excel also can change data between other Microsoft Office applications. It is available for Microsoft Windows, Mac OS X (macOS) and various mobile platforms.

Microsoft PowerPoint icon

Microsoft Corporation logoMicrosoft PowerPoint  Microsoft Windows software

Company or developer:
Microsoft Corporation

Microsoft PowerPoint is popular presentation tool used to create rich presentation documents. PowerPoint is a part of the Microsoft Office suite.

Microsoft PowerPoint gives you more ways to create and share dynamic presentations with your audience than ever before.

Exciting audio and visual capabilities help you tell a crisp, cinematic story that’s as easy to create as it is powerful to watch. In addition, PowerPoint enables you to work simultaneously with other people or post your presentation online and access it from virtually anywhere using the Web or your smartphone.

PowerPoint most used file extensions: PPSX, PPS, PPT, PPTX

Help how to open:

The rels files are stored in XML text format and they are viewable in any text editor.

How to convert:

As far as we know, this .rels file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

List of software applications associated to the .rels file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open rels file, edit rels file, convert rels file, view rels file, play rels file etc. (if exist software for corresponding action in File-Extensions.org's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is ableto perform the specified software action, such as opening, editing or converting rels files.

  • Open rels file
  • Edit rels file
  • Others rels file

Software that open rels file - Microsoft Open Office XML relationships data

Programs supporting the exension rels on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open rels file action.

Microsoft Windows:

Main software associated with rels file by default:
Microsoft PowerPoint small icon Microsoft PowerPoint
Other suggested software:
Sublime Text small icon Sublime Text
Atom small icon Atom
PSPad small icon PSPad
NotePad++ text editor small icon NotePad++ text editor

Apple macOS / Mac OS X:

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