.SCH File Extension

An SCH file contains a schematic, or visual diagram, of a PCB (printed circuit board) created with EAGLE PCB design software. It stores symbols (for logic gates) connected by lines, which represent buses. EAGLE users often create actual circuit board (.BRD) files from SCH files.

You can open an SCH file in a variety of PCB design applications, including:

• Autodesk EAGLE (cross-platform)
• Altium Designer (Windows)

If you do not have access to any of the above applications, the easiest way to view the circuit board schematic contained within an SCH file is to upload it to Altium 365 Viewer, a free, online CAD file viewer (web).

A SCH file is a help project used by Solutions Etcetera SuperCard, a discontinued visual authoring tool for macOS. It contains data for a project, including indexable help content, which assists in extending the SuperCard Help System.

Developers who are enhancing or customizing the help documentation of software projects developed within SuperCard are most likely to create SCH files. These files are integral to building navigable and searchable help systems that improve user guidance.

NOTE: While SuperCard and its associated file types like SCH were widely used in creating multimedia applications on classic Mac OS and early macOS versions, their use has declined as newer tools have emerged.

You can open SCH files with Solutions Etcetera SuperCard, a multimedia authoring tool for macOS. To open the SCH file with SuperCard, select File → Open.

An SCH file may also be a schematic design file created by KiCad, a free, cross-platform electronic design automation (EDA) software. It contains the layout of an electronic circuit as drawn on the program's schematic canvas, including components, wires, nets, labels, and electrical connections. SCH files define and organize the electrical design of a circuit before it is translated into a physical printed circuit board (PCB)

Engineers, electronics hobbyists, and students commonly use SCH files as part of the circuit design workflow. Designers can place components, connect them with wires, and add annotations or electrical rules directly in the schematic editor. The software ensures that all connections are properly captured so that the design can be accurately transferred to the PCB layout stage.

You can open SCH files with KiCad in multiple ways. For example, you can open the .PRO or KICAD_PRO project that contains the SCH file (the PCB editor automatically recognizes the layout file associated with the project) or by selecting File → Open with the KiCad PCB editor.

Since SCH files store information in plain text, you can also open them with a text editor, such as Microsoft Notepad or Apple TextEdit.

An SCH file may also be a scheme file used by Golden Software Strater, a program for visualizing borehole and well log data. It contains classification information, such as lithology names, keywords, and data ranges, along with display properties including lines, text, symbols, fills, and colors used to represent geological features. SCH files help users apply consistent formatting and classification across multiple borehole logs and other subsurface visualizations.

Strater users typically create and edit SCH files with the Scheme Editor, which is available from the Tools → Scheme Editor menu. Geologists, hydrogeologists, environmental scientists, and engineers commonly use these files to create reusable schemes for displaying lithology, well construction, and other geological information consistently across projects.

You can open SCH files with Golden Software Strater in Windows. To open an SCH file with Strater, select File → Open.

An SCH file contains a schematic, or visual diagram, of a printed circuit board PCB created with ExpressSCH design software. It stores an electronic schematic as it is laid out on the program's drawing canvas and includes symbols (for logic gates) connected by lines, which represent buses.