SYN File Extension

The SYN file extension was created by Adobe and is also known as the RoboHelp Synonym List File. SYN is classified as a Data Files and This file is saved in a plain text format. You can open and view the contents of this file using a text editor<\/a>. You can open SYN files in Helios TextPad program.

RoboHelp Synonym List File Type

RoboHelp Synonym List File Type
Extension .syn
Developer Adobe
Popularity 5.0 (1 Votes)
Mime Type mime-type/not.available
Default Program Helios TextPad
Category Data Files
Format Text
Updated 6/1/2025

What is a SYN File Type?

The SYN files use plain text and can be opened by n' any text editor. It is generated as part of a RoboHelp (.XPJ) project.

Free Online SYN Tools & Apps

Access powerful and secure free online SYN tools to convert, view, edit, merge, split, and compare SYN files — all without installing any software. Our tools support the .SYN (RoboHelp Synonym List File) file extension and run smoothly in any modern browser.

Select a tool below to explore features and manage your SYN files directly from your device with ease.

SYN Files Common Issues

There are few common issues with the RoboHelp Synonym List File .SYN=9491 File Extensions while opening the .SYN=9491 files on Windows and MacOs, we have solution to those issues such as:

Can't Open SYN Files?

  1. You must have supported software programs installed for RoboHelp Synonym List File on your system such as Helios TextPad.
  2. Associate default Helios Textpad Helios TextPad program for *.syn (RoboHelp Synonym List File) files.

    Associate SYN Default Program on Windows
    1. Right-click a *.SYN (e.g example.syn) file and click Open With.
    2. In the Open with dialog box, click Helios Textpad Helios TextPad program Or click Browse to locate the program (*.exe) that you want.
    3. Select check box for Always use this app to open .syn files.

    Associate SYN Default Program on MacOs
    1. Click *.SYN (e.g example.syn) file and click information -> Open With.
    2. In the programs list, click Helios Textpad Helios TextPad program Or other appropriate program that you want.
    3. Confirm Change for all... and Contine.
    4. A message will appear "This change will be applied to all files with .Helios TextPad extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related SYN File Extensions

SYN default file extension is .SYN and other similer related extensions are:

All Platform Software Programs for SYN File Extension

List of all softwares that can open the SYN files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Microsoft Windows logo image Open SYN File on Windows

Software License Developer
Helios TextPad image. Helios TextPad 000 for Windows Free Trial Helios TextPad
Adobe RoboHelp image. Adobe RoboHelp 2019 for Windows Commercial Adobe
UVViewSoft SynWrite image. UVViewSoft SynWrite 000 for Windows Free UVViewSoft SynWrite

MacOs logo image - FileProInfo.comOpen SYN File on Mac OS

Software License Developer
Adobe RoboHelp image. Adobe RoboHelp 2019 for MacOs Commercial Adobe

Linux logo image - FileProInfo.comOpen SYN file on Linux

Software License Developer

Website logo image - FileProInfo.comOpen SYN file on Web

Software License Developer

iOS logo image - FileProInfo.comOpen SYN file on iOS

Software License Developer

Android logo image - FileProInfo.comOpen SYN file on Android

Software License Developer

About Licensing

  1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
  2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
  3. Free+ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
  4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
  5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

SYN file extension icon image.About SYN - RoboHelp Synonym List File

FileProInfo is to help you understand about the RoboHelp Synonym List File with *.SYN suffix, and provide the complete detail as how to open, edit, convert, merge, split and compare it with other related software programs, software download links and free online apps and tools.

Our professional team members at FileProInfo have been individually researched and verified the details for SYN. We want to be 100% accurate and publish the information about file formats, tools, apps and software programs that we have tested and validated.

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Updated 6/1/2025