The File Extensions Database

.AEPX File Extension

  • Developer by: Adobe Systems
  • Category: Video Files
  • Format: XML

What is an .AEPX file?

.AEPX is After Effects XML Project

An AEPX file is a project file created by Adobe After Effects, a video-editing application. It contains a video composition, which includes references to video assets, motion graphics settings, and visual effects. AEPX files are used for creating professional-quality video productions.

AEPX file open in Adobe After Effects CC 2019

The AEPX file is one of two file types used to save video editing projects in After Effects. The main format is the .AEP file, which is saved in binary format. The other format a project may be saved in is the AEPX file, which is a text-based XML project file.

After Effects projects may also be saved as templates. One file type used to store templates is the .AET binary project and the other is .AETX XML project.

To create an After Effects project, select File → New → New Project then click File → Save a Copy As XML....

To open an After Effects project, select File → Open Project....

Programs that open After Effects XML Project
Adobe After Effects CC 2019
Adobe After Effects CC 2019

How to solve problems with AEPX files

  • Associate the AEPX file extension with the correct application. On :
    Windows: Right click on any AEPX file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.AEPX files". Mac: Right click (or Ctrl-click) the AEPX 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 .AEPX is After Effects XML Project. Because only the current version supports the latest AEPX file format. Search, therefore, e.g. on the Adobe Systems manufacturer website after an available .AEPX is After Effects XML Project update.
  • To make sure that your AEPX file is not corrupted or virus-infected, get the file again and scan it with antivirus software.