Extract text from IGR files
To convert your IGR file to another format, you need SmartSketch or other Cad software.
To convert other file formats to the "2D Technical Drawing" file type, you need software like SmartSketch or a similar tool.
The .IGR extension is primarily associated with SmartSketch (formerly Intergraph Imagineer Technical), a precision engineering and drafting application now owned by Hexagon. These files function as 2D vector drawings used heavily in process engineering for piping and instrumentation diagrams (P&ID) and technical illustrations.
Because the .IGR format uses a proprietary implementation of the Microsoft Compound File storage system, it is notoriously difficult to open without an active SmartSketch license. Users often encounter these files in legacy archives and find themselves locked out of critical engineering data because standard CAD tools like AutoCAD cannot natively import them. Furthermore, the format is not web-friendly, meaning you cannot view it in a browser or on mobile devices.
To make these files usable, the most practical workflow is converting them to PDF for documentation and easy viewing. For users needing to edit the geometry in modern CAD software, converting to DWG or DXF is essential to preserve vector lines and layers.
Convert.Guru analyzes your IGR file, detects the exact format, and lets you read the text inside.
Users also converted PRJ, OCT, MI, ED and MAJ files.
If you want to convert IGR file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC, APE or WV, you can use SmartSketch or similar software from the "2D Engineering Drafting" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to IGR, try SmartSketch or another comparable tool in the "2D Engineering Drafting" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our IGR converter.