.sad file: how to open it on Windows

4 Windows apps register the .sad extension. Install one of them to open the file with a double-click.

• A
  Altova SchemaAgent 2025 Client

  Visual tool for managing relationships among XML-based files

  Proprietary 2025.02.00.01
• A
  Altova SchemaAgent 2026 Client

  Visual tool for managing relationships among XML-based files

  Proprietary 2026.02.00
• A
  Altova SchemaAgent 2023 Client

  Visual tool for managing relationships among XML-based files

  Proprietary 2023.02.00
• A
  Altova SchemaAgent 2024 Client

  Visual tool for managing relationships among XML-based files

  Proprietary 2024.02.01

Related guide: Change the default app for a file type in Windows