Open ALT file

ALT files: what are they and how do I open them?

alt file icon Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

.alt file type #1: Corel WordPerfect menu library

Files with alt file extension are mainly related to Corel WordPerfect and used for files that menu library.

Further details:

The alt file extension is associated with Corel WordPerfect, a word processing program, developed by Corel Corporation. Corel Word Perfect is part of Corel Word Perfect Office suite.

The alt files contain menu library for Corel WordPerfect.

Open file with:

Corel WordPerfect icon

Corel WordPerfect

Corel WordPerfect is word processor for Microsoft Windows

Corel WordPerfect Office icon

Corel WordPerfect Office

A complete productivity office suite developed by Corel Corporation

.alt file type #2: Microsoft Dynamics AX temporary data

An alt file extension is related to the Microsoft Dynamics AX software. An alt file stores temporary data.

Further details:

The alt file extension is associated with the Microsoft Dynamics AX, an enterprise resource planning software for Microsoft Windows and Microsoft Windows Server systems.

The alt file stores temporary data.

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Microsoft Dynamics AX icon

Microsoft Dynamics AX

A resource planning software from Microsoft

.alt file type #3: ReliaSoft ALTA related data

An alt file extension is associated with the ReliaSoft ALTA related data format.

Further details:

The alt file extension is associated with ReliaSoft's ALTA, a quantitative accelerated life testing (QALT) data analysis software.

The alt file stores some kind of data used by ALTA program.

Open file with:


Accelerated Life Testing Data Analysis Software Tool

.alt file type #4: Valve Steam data

An alt file extension are used by Valve Steam program for Windows, Linux and Mac OS X systems.

Further details:

The alt file extension is associated with the Valve Steam, an application for Microsoft Windows, Apple Mac OS X (macOS) and Linux, which enables users to download and purchase games from Steam service.

The alt file stores game history data used by Steam program.

Open file with:

Steam icon


A digital gsame distribution platform for gamers

Steam for Mac icon

Steam for Mac

OS X version of Steam game client

Steam for Linux icon

Steam for Linux

Game and software distribution platform for Linux

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.alt" has the file extension "alt". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

Only verified software links are provided

We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.