Opening ALT Files

The ALT file type is primarily associated with Age of Empires II.

ALT	File extension: ALT
	File type:	data file

What is an ALT file?

ALT files mostly belong to Age of Empires II. ALT files are not tied to a single format. They can serve different roles depending on the creator.

Game Save File: In one case, an ALT file acts as an alternative save file for games such as Age of Empires II: The Conquerors Expansion. It holds game progress data and is opened within the game itself.

Compressed Executable: Other ALT files use an EXE format that has been compressed (often via tools like PKLITE). Such files are meant to run on Windows and may contain installation programs.

Camera Metadata: A third use sees ALT files storing Canon camera metadata in a JFIF format. This variant acts as a JPEG image alternative and is managed by Canon Digital Camera Software. More help is available at Canon Support.

FilExt.com tip: The extension ALT is a label chosen by developers to indicate an alternative or backup file and does not conform to one universal standard. Identifying which use applies requires checking the file's origin and properties.

How to open ALT files

You need a suitable software like Age of Empires II to open an ALT file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ALT file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ALT file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ALT Text Viewer

Choose your .alt file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

Programs that open and convert ALT files:

Age of Empires II
See the previous paragraphs to learn more about the main application. ALT files are often referred to as Age of Empires II games because this type of file is primarily created or used by this software.
Aladdin Interactive DSP (Message Text) by Hitech Development AB
Aladdin message list for building signal processing model. This file type is created with Aladdin Interactive DSP Workbench for use in user applications based on Aladdin Executive DSP program and DSPgate driver.
ReliaSoft ALTA 6
Accelerated Life Testing Analysis Software
WordPerfect (Menu File) by Corel Corporation
Related links: CKNOW Info Page

Technical Data for ALT File Extension

File classification:

Game

Related files:

jfif, atl, ait, pdf, zip, ald, alh, ipp, sav, exe, img, rar, dat

an alt data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with ALT files

Associate the ALT file extension with the correct application.
Update your software that should actually open data files. Because only the current version supports the latest ALT file format. Search, therefore, e.g. on the manufacturer website after an available Age of Empires II update.
To make sure that your ALT file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ALT file online - secure, fast, and no downloads needed.