File Extension
Extension: Altium Designer Schematic Document
Developer: Altium
To open and work with .schdoc files, you’ll need Altium Designer itself. There isn’t a universal viewer or alternative program that can readily display their contents. Altium Designer is proprietary software and requires a license to use. Once installed, simply double-clicking the .schdoc file will usually launch it within the Altium Designer environment. If this doesn’t work, you can open Altium Designer first and then use its “File > Open” menu to locate and select the .schdoc file. Attempting to open these files with incompatible software will likely result in an error or display nothing meaningful. Therefore, access to Altium Designer is a prerequisite for any interaction with .schdoc files.