The Four Best Ways to Open IDT Files

The first way you should always try to open file extension IDT is to double-click it, but when that doesn’t work, there are a few other things you can try. There are lots of programs that can open different file extensions, and there are some simple ways you can tell which one to use.

Pick the Right Program

Start by choosing the right program to open your IDT file. A few of the most common programs used to open IDT files are listed below. One of them should be able to open your IDT file.

  • Identification
  • Text Archive Table
  • Output of DLL2IDT Utility
  • Windows Installer File

Note the File Type

Other programs may be able to open your IDT file, depending on the type of file it is. You can find the file type listed in the file’s properties. On a Windows PC, right-click the file, click "Properties", then look under “Type of File.” On a Mac computer, right-click the file, click “More Info,” then look under “Kind”.

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Tip: If it’s the IDT file extension, it probably falls under the Developer Files type, so any program used for Developer Files should open your IDT file.

Ask the Developer

Contacting the software developer is another easy way to get help opening a IDT file. You can find the developers for the most common programs used to open IDT files in the list below.

Software Developer
Identification Microsoft Developer
Text Archive Table Windows Programmer
Output of DLL2IDT Utility Microsoft Programmer
Windows Installer File Microsoft Corporation


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