A fai file extension is related to the FASTA, a DNA sequence analysis program.

Detailed description

Software that works with fai file extension

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FAI file - FASTA index data

What is fai file? How to open fai files?

File type specification:

Various data file type icon Various data file type

The fai file extension is associated with the FASTA, a software for Microsoft Windows, macOS and Unix operating systems, which enables users to analyse DNA sequences.

The fai file stores index data.

The default software associated to fai file type:

FASTA  Multiplatform software

Company or developer:
University of Virginia

FASTA is a DNA and protein sequence alignment software package.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .fai 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 recommended software applications associated to the .fai 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 fai file, edit fai file, convert fai file, view fai file, play fai file etc. (if exist software for corresponding action in File-Extensions.org's database).

  • Others fai file

Unspecified and all other actions for computer programs working with fai file - FASTA index data

Click on the software link for more information about FASTA. FASTA uses fai file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).


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