.MAF File Extension

National Cancer Institute
File Type:
Mutation Annotation Format File

Having trouble opening .maf extension? Don't panic! This page explains what maf files are as well as suggests programs you may use to open maf files. You can download these programs through this page.

What is a MAF file?

Maf file extension has Mutation Annotation Format file type, developed by National Cancer Institute, which is associated with the "data files" category.

These are text files in the Mutation Annotation Format, which was developed to capture cell mutations. MAF files contain information about cells and genomes in a tab-delimited text. This data allows detecting single-nucleotide polymorphism and somatic mutations. The format is used by some applications for custom research analysis, but MAF files can be opened even in a simple text editor. The MAF format had several revisions and still in active use.

To learn how you can open the given file, read the information below.

maf file icon
National Cancer Institute
File Type:
Mutation Annotation Format File
Data Files

How to open MAF file?

Double click the maf file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .maf extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the maf extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the maf file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open MAF files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the maf file as well. Download Universal File Viewer for your OS.

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