All about GTH Files

The GTH file type is primarily associated with Domino Document Manager.

GTHFile Extension GTH
File extension: GTH
File type:  Domino Document Manager files

What is a GTH file?

GTH files mostly belong to Domino Document Manager by IBM. Document retention software. This was a Lotus product. Lotus was bought out by IBM. Lotus Notes and Domino are a fundamental component of IBM Workplace

How to open a GTH file

You need a suitable software like Domino Document Manager to open a GTH file. You need a suitable software like Domino Document Manager from IBM to open a GTH file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your GTH file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a GTH file directly in the browser:. Just drag the file onto this browser window and drop it.

Online GTH Text Viewer

Choose your .gth file to analyze

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.GTH File Not Opening? How to Fix It:

Because .GTH files can originate from different programs, they aren't universally openable with standard apps.

  1. Identify the Source: If received from an enterprise archive or a legacy database administrator, it likely belongs to IBM Domino Document Manager.
  2. Check the Header: Open the file in a hex viewer or text editor to inspect the first few bytes:
    • "PK" indicates a standard ZIP archive.
    • Readable XML or JSON suggests structured text data.
    • Unreadable symbols often mean a proprietary binary format.
  3. Use the Original Software: Opening the file usually requires the original program, such as IBM Domino Document Manager or Lotus Notes. If uncertain, ask the sender what software they used.
  4. Use this Webpage: Drag and drop your .GTH file into our viewer above to detect its format, extract readable text, and preview its contents.

Technical Data for GTH File Extension

Related files:
Mime type:

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: gthfile
EXEFile: C:\Lotus\DominoDoc\domdoc.exe %1


a gth Domino Document Manager file is a special file format by IBM and should only be edited and saved with the appropriate software.

How to solve problems with GTH files

  • Associate the GTH file extension with the correct application.
  • Update your software that should actually open Domino Document Manager files. Because only the current version supports the latest GTH file format. Search, therefore, e.g. on the IBM manufacturer website after an available Domino Document Manager update.
  • To make sure that your GTH file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .GTH file online - secure, fast, and no downloads needed.
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