File Extension Library


.ISTG File Extension

  • Developer by: Imagine
  • Category: 3d graphics, CAD-CAM-CAE Files

What is an .ISTG file?

.ISTG file extension is created by Imagine. .ISTG has been classified as 3d graphics, CAD-CAM-CAE Files.

.ISTG is ISOE imagine stage file

The ISTG file extension is associated with the ISOE (Imagine Stage/Object Examiner) a tool for Microsoft Windows operating system. The *.istg file stores imagine stage data related to *.tddd files (Imagine object file format).


How to open:

Use ISOE to open *.istg files.

How to convert:

Various 3D models or CAD files can be typically exported to some exchange format or converted between different formats. Once again, not all CAD/3D modeling programs may allow conversion of every format. But, there is always the option of using some of the dedicated 3D conversion utilities with a broad file format support. For general information try to look at:Basic info how to convert CAD and other 3D graphic files

How to Open .ISTG file on different platforms

Open .ISTG File on Windows

  • Right-click a .ISTG
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .ISTG file and Select check box "Always use this app to open .ISTG files" Press "Ok"

Open .ISTG File on Mac

  • Right-click (or Ctrl + Left-click) the .ISTG file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .ISTG File on Linux

Right click on the .ISTG file, choose "Open with" and select a program from the list above

Open .ISTG File on iPhone

Select a file. If you don't see an application to open the .ISTG file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .ISTG File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .ISTG files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .ISTG files

  1. You need to update the application that you normally use to open .ISTG files. Only the latest version of the software supports the current .ISTG file format
  2. You need to check the .ISTG file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)