1. Home
2. Docs
3. Guides
4. Opening And Saving

Opening And Saving

ProCad.IO uses ACadSharp behind ICadDocumentService so the rest of the app works with a stable document service contract.

Supported File Formats

• DWG
• DXF

Read and write behavior is configured through CadReadOptions and CadWriteOptions. The app exposes those settings through the IO Options tool.

Open Workflow

1. The workspace asks ICadFileDialogService for one or more CAD files.
2. The selected format is mapped to read options.
3. ICadDocumentService loads the document.
4. A document ViewModel is created with render settings and scene builder services.
5. The document is registered with context, tree, selection, editor session, and dock services.

Save Workflow

Saving uses the active document's path and format. Save As asks the file dialog service for a target path and format. Write options are built from the IO Options ViewModel.

Raw DXF

The raw DXF view is useful for ASCII DXF inspection and text diff workflows. Binary DXF and DWG are not raw text formats; use semantic views and document diffing for those files.