The File Extensions Database

.ACT File Extension

  • Category: Audio Files

What is an .ACT file?

.ACT is ADPCM Compressed Audio File

Audio format recorded by some voice recorders and MP3 players; compressed using Adaptive Differential Pulse Code Modulation.

Programs that open ADPCM Compressed Audio File
Logipole Konvertor
File Type 2 Alma CAD/CAM Document
Developer by: Alma Category: CAD Files

CAD document created by Alma CAD/CAM software products such as act/cut, act/weld, and act/tubes; contains CAD/CAM data that specify instructions for 3D cutting machines or welding robots; can incorporate laser, plama, waterjet, and flame technologies.

Programs that open Alma CAD/CAM Document
Alma act/cut 3D
Alma act/weld
Alma act/tubes
File Type 3 DS Game Maker Action File
Developer by: Invisionsoft Category: Developer Files Format: Text

File used by DS Game Maker, an application used to create Nintendo DS games; contains a game action written in C; used for displaying graphics, playing sounds, creating transitions, and controlling game logic, as well as other actions.

Custom actions can be created from templates provided in the DS Game Maker Action Editor interface. ACT files are stored in the \Actions\ directory of the DS Game Maker installation.

ACT files are saved with a corresponding .ACTX file, which contains a description for the action.

Programs that open DS Game Maker Action File
Invisionsoft DS Game Maker
File Type 4 Adobe Color Table File
Developer by: Adobe Systems Category: Settings Files Format: Binary

Color lookup table (CLUT) file used by Adobe Photoshop, an application used for editing raster graphics; stores a collection of pre-defined colors; used for applying a CLUT to an image in the "Save for Web" dialog in Photoshop.

ACT files are used for optimizing images for Web publishing. By adding or reducing the number of colors in the CLUT, users can examine the quality of the image versus the resulting file size before saving it.

Adobe color tables can be loaded in the Save for Web dialog box by selecting the Color Table menu and choosing Load Color Table.... Several predefined ACT files are included with the Photoshop installation in the /Presets/en_US/Save for Web Settings/Color Tables/ directory.

NOTE: CLUTs are used by some image formats in the Save for Web dialog, such as .GIF. However, they are not used by .JPG and .PNG files.

Programs that open Adobe Color Table File
Adobe Photoshop CC 2019
Adobe Illustrator CC 2019
Adobe Photoshop CC 2019
Adobe Illustrator CC 2019
File Type 5 Genesis3D Actor File
Developer by: Eclipse Entertainment Category: 3D Image Files

Three-dimensional character, or "actor," saved in the Genesis 3D format; may include object motions, skins, and materials; actor files can be created directly within Genesis3D or by converting other 3D formats to the ACT format using Genesis3D Actor Studio.

Genesis3D is an open-source real-time 3D rendering engine used primarily for creating 3D games. The Genesis 3D engine pack includes the Actor Studio, Actor Viewer, and other files. More information is available at the Genesis3D website.

Programs that open Genesis3D Actor File
chUmbaLum sOft MilkShape 3D
Autodesk 3ds Max 2018
File Type 6 FoxPro Documenting Wizard Action Diagram
Category: Text Files

Shows the hierarchical relations within the code of a FoxPro application; created by the Documenting Wizard (Tools menu→Wizards→Documenting)

Programs that open FoxPro Documenting Wizard Action Diagram
Microsoft Visual FoxPro

How to solve problems with ACT files

  • Associate the ACT file extension with the correct application. On :
    Windows: Right click on any ACT file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.ACT files". Mac: Right click (or Ctrl-click) the ACT file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .ACT is ADPCM Compressed Audio File. Because only the current version supports the latest ACT file format. Search, therefore, e.g. on the N/A manufacturer website after an available .ACT is ADPCM Compressed Audio File update.
  • To make sure that your ACT file is not corrupted or virus-infected, get the file again and scan it with antivirus software.