.SDR File Extension

2 file types use the .sdr file extension.

Dell Support File

Developer Dell
3.7  |  25 Votes

What is an SDR 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.

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The presence of the dell.sdr file means that the computer is using a Dell-installed version of Windows.

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Programs that open or reference SDR files


SmartDraw Drawing

Developer SmartDraw
3.1  |  13 Votes

An SDR file contains a drawing created with SmartDraw, a program used to create professional diagrams. It stores a diagram drawing, which may include text, shapes, connecting lines, and images. SDR files may save one of 70 different types of drawings, such as a flowchart, project plan, calendar, organizational chart, mind map, or floor plan.

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Screenshot of a .sdr file in SmartDraw 2020
SDR file open in SmartDraw 2020

SmartDraw is primarily used in business environments as an alternative to Microsoft Visio. It can run in Windows, macOS, and online in a web browser and allows users to create professional-quality diagrams for project-planning purposes and presentations.

To create an SDR file with SmartDraw in Windows or macOS, select File → New, choose to create the diagram from scratch or from a template, edit the diagram, then select File → Save or Save As.

You can export SDR files to other formats, such as Visio Drawing .VSDX, .PDF, Microsoft PowerPoint .PPTX, .HTML, .JPG, .PNG, and .GIF. To export an SDR file with SmartDraw in Windows or macOS, select File → Export and choose the format.

How to open an SDR file

You can open SDR files with SmartDraw in Windows or macOS by selecting File → Open. You can also open SDR files with SmartDraw in a web browser by selecting SnartDraw File in the "Import" section.

Programs that open SDR files

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