APS File

What are APS files and how to open them

Are you having problems opening an APS file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your APS files.

What is an APS file?

APS files have multiple uses, and AProSys Module is one of them. Read more about the other uses further down the page.

AProSys Module

.aps files are module files of the AproSys application. AproSys is an example of a sound tracker or tracker, a tool used to create music. Aprosys created sound module files for the Amiga, a computer line introduced by Commodore in the 80s.

The Amiga was a computer system and game console in one. AproSys created .aps files as music module files used in the game development for the Amiga.

How to open APS files

Important: Different programs may use files with the APS file extension for different purposes, so unless you are sure which format your APS file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested ten different APS openers which you will find listed below.

Last updated: August 18, 2026

All known file formats using extension .APS

While AProSys Module is a popular type of APS-file, we know of 3 different uses of the .APS file extension. Different software may use files with the same extension for different types of data.

ArcPad Stylesheet

.aps files are ArcPad Stylesheet files, files containing data symbol definitions used by ArcPad. ArcPad is an example of mobile mapping and geographical information system (GIS) software.

This kind of software is responsible for field mapping and data collection for GIS software, which is used in maps, GPS devices, navigational systems, etc.

Visual C++ Binary Resource

Visual C++ Binary Resource files are intermediate cache files generated by Microsoft Visual Studio's Resource Editor when editing the human-readable resource script of a Windows C-++ project. They store a compiled, binary snapshot of the resources defined in the .RC script - such as dialogs, menus, string tables, icons, bitmaps, accelerators, and version info - so the IDE can display and edit those resources quickly without reparsing the text file each time.

These files are automatically produced whenever the resource script file is opened or edited. They are not part of the final build chain: they are not used by the resource compiler or the linker to produce .RES or executable files. They exclude comments and symbolic names (which remain in the script and associated header files) and instead contain the serialized binary representation that the IDE's resource editor needs. Deleting one causes it to simply be regenerated on the next edit.

In Visual C++ documentation dating back to versions 4.0 through 6.0 the format is described simply as the "binary version of the current resource script file" used by the resource editor within Developer Studio or Visual C++ IDE.

Technical identifiers include byte signatures such as "HWB\0" at the start followed by specific values, or sequences like 00 00 00 00 20 00 00 00 FF FF … depending on compiler/environment. The format is little-endian and proprietary; Microsoft has not published a full public specification.

Various apps that use files with this extension

These apps are known to open certain types of APS files. Remember, different programs may use APS files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about APS file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.