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SPLN file extension

The table below provides useful information about the .spln file extension. It answers questions such as:

  • What is the .spln file?
  • What program do I need to open a .spln file?
  • How can the .spln file be opened, edited or printed?
  • How can I convert .spln files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ APID ToolAssistant Scripted Plugin

SPLN file is an APID ToolAssistant Scripted Plugin. APID ToolAssistant is a runtime plug-in for Adobe InDesign.
SPLN format description not yet available
Category: Other files
Application: APID ToolAssistant
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
SPLN aliases:
SPLN related links:
SPLN related extensions:

Other types of files may also use the .spln file extension.

🚫 The .spln file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cpln, pln, sln, spin, spl, spn

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

KalOnline Extended Module Data
Windows Spool Data
ArchiCAD 3D Model
AkAbak Simulation Data
AGPS-Shape Pro Profile Data
Abacom sPlan Components Database
Microsoft Visual Studio Solution
WinView/400 Report Data
Apple Mac OS X Console Spin Report

🔴 Can't open a .spln file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .spln file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .spln file extension, write to us!

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