One particular weakness of Microsoft is maintaining support for document formats they have come up with the past.
MDI is one of such formats, and I had quite some old scans and document exports (back when TIFF wasn’t common place, and Microsoft was advertising MDI as a “portable” way of sharing digital print similar to PDF that wasn’t commonplace either).
I’ve exported it to PDF now.
So here is to get it working in Office 2007; it probably works the same in Office 2010 and 2012:
- installing Microsoft Document Imaging Writer and its corresponding support for the file format.
- Go to Control Panel, select “Uninstall a program” link under Programs section.”
- High Microsoft Office 2007 (it may show Ultimate, Enterprise, Professional, Small Business, Home and Student, etc).
- Click on “Change” located on the navigation link near the top of the window.
- Select “Add or Remove Features”, then click “Continue”.
- Expand “Office Tools” section.
- Click on the drop down list for “Microsoft Office Document Imaging” and select “Run all from My Computer”.
- Click “Continue”.
- Click “Close” when installation done.
- A new virtual printer “Microsoft Office Document Imaging Writer” is created and allows you to print to MDI format (a TIFF variant). And from now onwards you should be able to open any MDI files by simply double click on them. If you still can’t, try to restart your computer.
–jeroen
via: How to Open MDI (Microsoft Document Imaging) Format with Office 2007 « My Digital Life.