.AT5 File Extension

File Type:
Lowrance Map File

Having trouble opening .at5 extension? Don't panic! This page explains what at5 files are as well as suggests programs you may use to open at5 files. You can download these programs through this page.

What is an AT5 file?

At5 file extension has Lowrance Map file type, developed by Lowrance, which is associated with the "gis files" category.

Associated with Lowrance navigation devices, the file stores a custom map that may be loaded onto the device, using Lowrance software. The latter is commonly applied for outdoor, marine, or aviation activities.

To learn how you can open the given file, read the information below.

at5 file icon
File Type:
Lowrance Map File
GIS Files

How to open AT5 file?

Double click the at5 file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .at5 extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the at5 extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the at5 file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open AT5 files

  • Windows Windows
    • Lowrance AirMap Lowrance AirMap
    • Lowrance Endura Lowrance Endura

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the at5 file as well. Download Universal File Viewer for your OS.

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