SCHDOC to TXT Converter

SCHDOC to TXT Conversion Explained

Converting an .SCHDOC file to a .TXT file changes a proprietary electronic schematic into plain text. Users perform this conversion to extract structured data—such as a netlist, a Bill of Materials (BOM), or component properties—from the visual design.

When you convert .SCHDOC to .TXT, you gain universal readability and the ability to process the data with simple scripts. However, you lose all graphical data. The visual layout, schematic symbols, wires, and title blocks disappear entirely. This conversion is a bad idea if you need to view, print, or share the schematic visually. If visual preservation is the goal, converting to .PDF is the correct choice.

Typical Tasks and Users

This conversion serves specific data extraction workflows in electronic engineering:

• Hardware Engineers: Extracting plain text netlists to run circuit simulations in SPICE software.
• PCB Designers: Moving connection data (nets and pins) from Altium to a different, non-Altium PCB layout tool.
• Procurement Teams: Generating a plain text BOM to import into ERP systems or spreadsheet software for purchasing.
• Firmware Developers: Reading pinout assignments and component references in a simple text editor without needing heavy CAD software.
• Version Control Users: Exporting text-based netlists to track hardware changes in Git, as binary .SCHDOC files do not support readable diffs.

Software & Tool Support

Handling .SCHDOC files usually requires specialized Electronic Design Automation (EDA) software, while .TXT files open anywhere.

• Altium Designer: The native, paid software for .SCHDOC. It can export netlists and BOMs directly to .TXT or .CSV.
• CircuitMaker: A free, community-driven tool by Altium that can open schematics and export text data.
• KiCad: A free, open-source EDA suite that can import modern .SCHDOC files and export the resulting netlists to plain text.
• Text Editors: Any editor like Notepad++ or VS Code can open the resulting .TXT file.
• Python Scripts: Advanced users utilize libraries like altium-python to parse the binary OLE streams inside the .SCHDOC and extract text programmatically.

Pros and Cons of the Conversion

Pros:

• Interoperability: Plain text netlists can be imported into almost any third-party PCB layout or simulation tool.
• Accessibility: Anyone can read the component list or pin connections without an expensive Altium license.
• File Size: A .TXT file containing a netlist is tiny compared to the original binary schematic.
• Automation: Text files are easy to parse using command-line tools (like grep or awk) or custom scripts.

Cons:

• Total Visual Loss: You cannot see how components connect visually.
• One-Way Process: You cannot convert a .TXT netlist back into a visual .SCHDOC schematic.
• Context Loss: Design intent, text notes placed on the schematic sheet, and spatial relationships are discarded.

Conversion Difficulties & Why Convert.Guru

Converting .SCHDOC to .TXT is technically difficult because .SCHDOC is a proprietary, undocumented binary format based on Microsoft OLE structured storage. You cannot simply rename the file extension or open it in a text editor; doing so only reveals unreadable binary characters.

A proper conversion pipeline must parse the OLE storage, identify the specific binary records for components and wires, map the logical connections (nets), and format them into a standardized text output. Convert.Guru handles this complex binary parsing automatically. It extracts the underlying netlist and component data cleanly, providing an accurate .TXT file without requiring you to install heavy CAD software or purchase an Altium license.

SCHDOC vs. TXT: What is the better choice?

Which format should you choose?

Choose .SCHDOC for active electronic design. It is the only format that retains your schematic symbols, wiring diagrams, and design rules. You must keep the original file to make future modifications to the circuit.

Choose .TXT only as an export format when you need to move data out of the schematic. Use it to feed a netlist into a simulator, transfer pin data to a different PCB tool, or send a parts list to purchasing. Avoid .TXT if you want to show someone what the circuit looks like.

Conclusion

Converting .SCHDOC to .TXT makes sense exclusively for extracting structured engineering data like netlists and component lists. The biggest limitation to watch for is the absolute loss of all visual and graphical information. Because Altium files use a complex, proprietary binary structure, extracting this text manually is impossible. Convert.Guru provides a reliable, fast solution to parse the binary data and deliver a clean, usable .TXT file, bridging the gap between proprietary CAD software and universal text tools.