.SDR File Extension
File Type 1Dell Support File
File named dell.sdr and located on Dell computers in the C:\ directory; contains system information and is used by Dell technical support purposes; should not be manually edited or deleted or any requests for Dell support may not work properly.
The presence of the dell.sdr file means that the computer is using a Dell-installed version of Windows.
File Type 2SmartDraw Drawing
|Category||Raster Image Files|
This file is saved in a binary format, which requires a specific program to read its contents.
Drawing created with SmartDraw, a program used to create professional diagrams; stores one of 70 different types of drawings, such as a flowchart, project plan, calendar, organizational chart, mind map, or floor plan; used in business environments to create professional-quality visuals.
SmartDraw can import Microsoft Visio drawings (.VSD files), and can export SDR files directly into opened Microsoft Word, Excel, PowerPoint, and Project files.