File Extension Library

.MAR File Extension

  • Developer by: Mozilla
  • Category: Misc Files
  • Format: Binary

What is an .MAR file?

.MAR file extension is created by Mozilla. .MAR has been classified as Misc Files. The format of .MAR file is Binary.

.MAR is Mozilla Archive

Application update file used by Mozilla programs such as Firefox, Thunderbird, and SeaMonkey; contains files that update the program to a new version; run by the Mozilla update program (update.exe in Windows), which is included with Mozilla software installations; stored in a custom file format, but Mozilla has made the specification publically available.

Mozilla programs automatically download and run MAR files, so the typical user will never manually open a MAR file. However, MAR files can be used to manually update a Mozilla program without opening it, which can be useful for system administrators.

The Mozilla development team generates nightly builds for their software products that include a MAR update package. Therefore, users can apply software updates with the latest release each day.

NOTE: MAR files created by the Mozilla team use the filename convention [program]-[version].complete.mar and [program]-[version].parial.mar for complete and partial software updates.

List of all softwares that can open the Mozilla Archive
Mozilla Firefox
Mozilla Thunderbird
Mozilla SeaMonkey
Mozilla Firefox
Mozilla Thunderbird
Mozilla SeaMonkey
Mozilla Firefox
Mozilla Thunderbird
Mozilla SeaMonkey
File Type 2 Microsoft Access Report
Developer by: Microsoft Category: Database Files

Shortcut file created by Microsoft Access, a relational database program for the desktop computer; contains a link to a report in an Access database; can be created by dragging a report object to the desktop and can be opened by double-clicking the file.

List of all softwares that can open the Microsoft Access Report
Microsoft Access 2016
File Type 3 Mariner Calc Spreadsheet
Developer by: Mariner Software Category: Spreadsheet Files Format: Binary

Spreadsheet created with Mariner Calc, a lightweight spreadsheet application for Mac OS X; contains data organized into rows and columns; supports functions, charts, named ranges, sorting, and auto-summation.

MAR files are saved in a proprietary format that can only be opened with Mariner Calc.

List of all softwares that can open the Mariner Calc Spreadsheet
Mariner Calc XLS

How to Open .MAR file on different platforms

Open .MAR File on Windows

  • Right-click a .MAR
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .MAR file and Select check box "Always use this app to open .MAR files" Press "Ok"

Open .MAR File on Mac

  • Right-click (or Ctrl + Left-click) the .MAR file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .MAR File on Linux

Right click on the .MAR file, choose "Open with" and select a program from the list above

Open .MAR File on iPhone

Select a file. If you don't see an application to open the .MAR file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .MAR File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .MAR files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .MAR files

  1. You need to update the application that you normally use to open .MAR files. Only the latest version of the software supports the current .MAR file format
  2. You need to check the .MAR file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)