An apr file extension is related to the SAM (Sequence Alignment and Modeling system) and used for its alignment probabilities files.

There are 4 other file types using
the APR file extension!

empty icon.apr - ArcView project

empty icon.apr - Lotus Approach view data

empty icon.apr - MicroSim PCBoard aperture information report

empty icon.apr - Apadana Project file

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APR file extension - SAM alignment probabilities

What is apr file? How to open apr files?

File type specification:

Various data file type icon Various data file type

The apr file extension is used for SAM (Sequence Alignment and Modeling system) alignment probabilities file, as created by pathprobs. An RDB-compatible format.

Most likely some old format without support. No further information could be found.

This apr file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Updated: July 21, 2018

The default software associated to open apr file:

Sequence Alignment and Modeling system  Linux/Unix software

Company or developer:
Richard Hughey - Kevin Karplus - Anders Krogh

Sequence Alignment and Modeling system (SAM) is a collection of fsoftware tools for creating, refining, and using linear hidden Markov models for biological sequence analysis.

The model states can be viewed as representing the sequence of columns in a multiple sequence alignment, with provisions for arbitrary position-dependent insertions and deletions in each sequence. The models are trained on a family of protein or nucleic acid sequences using an expectation-maximization algorithm and a variety of algorithmic heuristics. A trained model can then be used to both generate multiple alignments and search databases for new members of the family.

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 .apr 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 software applications associated to the .apr 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 apr file, edit apr file, convert apr file, view apr file, play apr file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting apr files.

Settings file type for software that use apr file - SAM alignment probabilities

Programs supporting the exension apr on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Sequence Alignment and Modeling system for settings apr file action.

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