File extension .IGR
Full Name | Developer | Category |
---|---|---|
SmartSketch Drawing Design Format | Intergraph Corporation | Vector Image Files |
The IGR .IGR file extension is associated with SmartSketch, a 2D CAD drawing application developed by Intergraph Corporation. SmartSketch was superseded by PenTools, a modular version of SmartSketch which offers users the ability to customize the functionality of their 2D drafting software.
IGR File Format
An IGR file contains design and geometric objects and can be used for designing floor plans, engineering diagrams, blueprints, schematic drawings, electrical diagrams and other illustrations. It supports graphical elements such as lines, arcs, circles, polygons, text, circles, metafiles (WMF) and OLE objects. IGR is a dVector-based Binary File Format created by Intergraph Corporation. It is similar in structure to .DWG files used by AutoCAD and other 2D CAD applications.Additional File Formats
The PenTools application also uses various file formats including, .PLT, .PML, .PMP, .PMV, and .PXF. Files created in all these versions are binary format files which contain vector drawing information.Programs for WINDOWS system
After installing the required software, the operating system will usually automatically associate an unknown file type (in this case .IGR) with the new application. If this does not happen, we can help the system a bit by selecting the software for it, which it should always use to open files with the .IGR extension.
When choosing the software we can select the system to use this software every time.
Remember!
Using it for the first time it is good to check whether the .IGR file opened in the application can be read by us and opens in a way that allows us to use it. If everything is in order, select this option the next time you open a file with the .IGR extension. However, if the file has not opened correctly, we have to look for a different software, with which we can open files with the .IGR extension. Select a different software from our list and install it on your computer. After the software is installed, repeat inspection openings of a .IGR file. Sometimes you have to repeat the operation several times.
Other instructions
If none of the programs listed by us to work with the .IGR file has not meet your expectations, you can try searching other websites. But remember to avoid downloading programs "that can open any file". These applications not only have very limited functionality, but may also expose you to expense tens of dollars when purchasing a license.
In the vast majority of cases you will find the program dedicated to support the .IGR file, or any other file format. In addition, there is a chance that it will be a free program, and its functionality (concerning the .IGR file) will be extended to the maximum.
It is also good to check
- if the .IGR file has no errors
- or if it has been copied (or downloaded by the browser) thoroughly
Author’s guidelines

Mr B. Adam
Author of the guidelines / Founder of FileExtension.info
New technologies enthusiast, helping to solve problems with the files.
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