Open APLN files

  • Full name
    Adobe InDesign 3rd Party Extension
  • Developer
    Adobe Systems Incorporated
Have you encountered a problem with a APLN file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a APLN file here. In the further part of this page we have added a list of programs that should open your APLN file. It is enough you choose a proper application for your operating system, download and install it.

What is APLN file?

With the file extension APLN, InDesign will mark plug-in files in the DTP (Desktop Publishing) solution. With InDesign, for example, you can create print templates and layouts for print products such as flyers, catalogs or brochures.

More info

With APLN files InDesign can be extended by new functionalities. InDesign plugin files are dll files with only modified endings. These are therefore only used under Windows. On the Mac operating system, the plugins usually have the extension InDesignPlugin.

APLN files belong in the 'Plug-ins' folder in the InDesign program folder.

Programs which can open a APLN file

How to open file with APLN extension?

In order to open a file with APLN extension one of the following programs must be installed on user’s system. If a problem with opening APLN file occurred, it is highly possible that none of the listed programs is present on user’s system. Even if one or more said programs are installed, there may be issues related with given programs. In order to solve a problem with APLN files, follow the instructions below.
1
Install Adobe InDesign or other program from the list

Most often resolving problems with opening APLN files is very simple. Just install an appropriate program that supports such files. All of the listed programs support APLN files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of APLN files or offer file conversion options, but may not be capable of editing such files.

Set Adobe InDesign as the default program for opening APLN files

It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate APLN files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Adobe InDesign applications is not on the list, select "Browse" option in order to manually locate the directory where Adobe InDesign has been installed.

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Check the section that lists most common problems with APLN files

Sometimes problems with opening APLN files may not lie with the application itself, but can arise due to other causes, such as:

  • File data is corrupted
  • APLN files has been not been completely download from the internet (only a part of the data has been downloaded)
  • Currently used user account hasn’t been granted necessary privileges to open APLN files (should that be the case, please contact your system administrator or IT specialist)
  • APLN file was being copied from a corrupted storage device and is incomplete or data is corrupted. (Copying files from unknown or untrusted sources should be conducted with great care as such files may contain malicious software, which can damage your system)

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