Files with idt file extension are related to Microsoft Windows Installer. These files are databases that contain data specific for installation purposes.

Detailed description

Software that open idt file

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IDT file extension - Windows Installer exported database table

What is idt file? How to open idt files?

File type specification:

Text file type icon Text file type

Various data file type icon Various data file type

The idt file extension is associated with Microsoft Windows Installer and used for files in so called Text Archive Format.

When an entire database is exported to archive files, each table in the database has a separate idt file. If a table contains a stream column, each stream in the table is represented by a file with an IBD file extension

The idt file of an exported database table that contains only ASCII characters has the following basic format.

  • The first row contains the table column names separated by tabs.
  • The second row contains the column definitions separated by tabs.
  • If the file contain only ASCII data, the third row is table name and primary key column names separated by tabs.
  • The remaining rows in the file represent rows in the table, with columns separated by tabs.

If the file contains non-ASCII data, the basic archive file format of the .idt file is extended to include code page information.

The third row in the idt table is the numeric code page followed by the table name and primary key column names separated by tabs.

The default software associated to open idt file:

Windows Installer icon

Microsoft Corporation logoWindows Installer  Microsoft Windows software

Company or developer:
Microsoft Corporation

Microsoft Windows Installer is installation and configuration service included in the Microsoft Windows 2000, XP, Vista, 7 as well as Windows Server family. Windows Installer provides standard format for Windows component management.

Help how to open:

IDT format can be viewed with any text editor.

How to convert:

Probably cannot be converted to anything else.

List of software applications associated to the .idt file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open idt file, edit idt file, convert idt file, view idt file, play idt file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting idt files.

Software that open idt file - Windows Installer exported database table

Programs supporting the exension idt on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open idt file action.

Apple macOS / Mac OS X:

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