Opening a GLI File

The GLI file type is primarily associated with GLHEPRO.

GLIFile Extension GLI
File extension: GLI
File type:  Input Data

What is a GLI file?

GLI files mostly belong to GLHEPRO by James R. Cullin - Oklahoma State University. GLHEPRO for Windows is professional ground loop heat exchanger software. GLHEPRO was developed as an aid in the design of vertical borehole-type ground loop heat exchangers used in geothermal heat pump systems. While GLHEPRO may be used for residential system design, it is aimed at commercial systems. The heat exchanger may be composed of any number of boreholes arranged in various configurations.

How to open a GLI file

You need a suitable software like GLHEPRO to open a GLI file. You need a suitable software like GLHEPRO from James R. Cullin - Oklahoma State University to open a GLI 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 GLI file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a GLI file directly in the browser:. Just drag the file onto this browser window and drop it.

Online GLI Text Viewer

Choose your .gli file to analyze

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4 Steps to Open an Unknown .GLI File

Because .GLI files originate from various programs, there is no universal way to open them.

  1. Identify the Source: A file from a geothermal engineer likely belongs to GLHEPRO, while one from a developer may be a game asset.
  2. Check the Header: Inspect the first bytes using a text editor or hex viewer:
    • Readable text or numbers indicates plain input data.
    • "PK" suggests a zipped archive.
    • Unreadable symbols imply a binary format.
  3. Use the Original Software: The original program is usually required; try GLHEPRO (by Oklahoma State University) or ask the sender for the correct app.
  4. Use this Webpage: Drag and drop your .GLI file into our viewer to detect its format, extract readable metadata, and preview the contents.

Technical Data for GLI File Extension

Related files:
glj, exe, inp, in, gjt

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: Grouper.Live365
EXEFile: %ProgramFiles%\Grouper\Grouper.exe -o %1

ProgramID: GenStat.GLI.6
EXEFile: %ProgramFiles%\Gen6Ed\bin\GenWind6.exe


a gli Input Data is a special file format by James R. Cullin - Oklahoma State University and should only be edited and saved with the appropriate software.

How to solve problems with GLI files

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