>> ALN file

ALN file format description

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

1 filename extension(s) found in our database.

.aln - ClustalW2 Alignment Data

The ALN data files are related to ClustalW2. ALN file is a ClustalW2 Alignment Data. Clustal is a widely used multiple sequence alignment computer program.

Data files
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ClustalW2 Alignment Data related extensions:
ClustalW2 Guide Tree Data

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

Can't open a .aln 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 .aln file extension is often given incorrectly!

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

ain, al, alb, alg, alm, amn, an, anl, aon, apn, lan, ln, wln, xln, zln

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

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Bentley InRoads Survey Alignment File
Excellon Drill File
Alpha Five Library
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Novell Localisation Workbench Workspace

Operating systems currently supports the following operating systems:

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

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

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