MAR file format description

Many people share .mar files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .mar file can be edited, converted or printed with. On this page, we try to provide assistance for handling .mar files.

4 filename extension(s) found in our database.

.mar - Microsoft Access Report

The MAR document files are related to Microsoft Access. The MAR file is a Microsoft Access Report.

Microsoft Access
Document files
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Microsoft Access Report related extensions:
Well Logger v2 Document
KeyCAD Drawing Document
QlikView Data Only File
Nero AAC CD Compilation
PrintShop Mail Document
BibExcel Cited Document

.mar - Pegasus Mail Attribute Record Data

The MAR data files are related to Pegasus Mail. The MAR file is a Pegasus Mail Attribute Record Data. Pegasus Mail is a previously freeware, proprietary, email client that is developed and maintained by David Harris.

Pegasus Mail
Data files
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Pegasus Mail Attribute Record Data related extensions:
TIBCO iProcess Process Definition
EROS B Metadata
Avantes Avasoft v8 Intensity Calibration ASCII Data
BSML Overlay Data
Internet Explorer for Mac Cache Data
Thor Filter Data

.mar - Mariner Calc Document

The MAR document files are related to Mariner Calc. The MAR file is a Mariner Calc Document. Mariner Calc is a streamlined spreadsheet for Mac OS X.

Mariner Calc
Document files
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Mariner Calc Document related extensions:
Business Card Pro Design
Intuit QuickBooks 2008 Document
Kontour Drawing Document
QuarkXPress Book
TouchDraw Document
Autodesk Fusion 360 3D Design

.mar - IBM WebSphere Business Modeler Process Model Template

The MAR development files are related to IBM WebSphere Studio Application Developer. The MAR file is an IBM WebSphere Business Modeler Process Model Template. IBM WebSphere is a set of Java-based tools from IBM that allow customers to create and manage sophisticated business Web sites.

IBM WebSphere Studio Application Developer
Development files
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IBM WebSphere Business Modeler Process Model Template related extensions:
Microsoft Expression Web Document Library
Xilinx ISE PAR Report Data
Xilinx ISE CPLDFit Model Data
MSBuild Response File
TensorFlow Graph Text
ASP.NET Trace Handler

Naturally, other applications may also use the .mar file extension. Even harmful programs can create .mar files. Be especially cautious with .mar files coming from an unknown source!

Can't open a .mar 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 can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .mar file extension is often given incorrectly!

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

amr, ar, har, jar, kar, lar, ma, mad, mae, maf, mag, mat, mr, mra, mwr

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Altair FEKO Matrix Element Data
Microsoft Access Table
Microsoft Access Diagram Shortcut
Pro/ENGINEER Material Properties Data
EMC NaviSphere Analyzer Archive

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you have useful information about the .mar file format, then write to us! >> MAR file