.MAS File Extension

There are 3 file types use the .MAS file extension:

  1. rFactor Track File
  2. MEGA Alignment Sequence File
  3. Access Stored Procedures

1. rFactor Track File

rFactor Track File
  • Developer Image Space
  • Popularity
    4.4 (14 votes)
  • Category Game Files
  • Format Binary

Game file used by rFactor, a racing simulation game; stores the asset files for a racing track map and includes files for both the structure and the appearance of the track; can be modded to create custom tracks, but modding is only for advanced users.

MAS files can be opened with the gMotor MAS File Utility (MAS.EXE), which is part of the "rFactor mod development tool pack" available from the rFactor website.

Software's name License Platforms
gMotor MAS File Utility gMotor MAS File Utility Windows
Image Space rFactor Image Space rFactor Paid Windows

Updated: January 4, 2012

2. MEGA Alignment Sequence File

MEGA Alignment Sequence File
  • Developer MEGA Team
  • Popularity
    3.4 (5 votes)
  • Category Data Files
  • Format Binary

Data file created by MEGA, a program used for testing evolutionary hypotheses; created in MEGA's Alignment Explorer tool and contains a binary representation of a genetic sequence alignment, which aligns genetic codes between two samples.

MAS files are used for saving the computed sequence alignment result and performing additional analysis such as generating phylogenetic trees (.MTS files).

Software's name License Platforms
MEGA MEGA Freeware MacWindows

Updated: June 7, 2011

3. Access Stored Procedures

Access Stored Procedures

Pre-written procedure or query used by an Access database.

Software's name License Platforms
Microsoft Access Microsoft Access Commercial Windows

Updated: May 25, 2021

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