Sandcastle Help File Builder project
File type: Source code and script file
The shfbproj file extension identifies a Sandcastle Help File Builder project file.
The file belongs to Sandcastle Help File Builder (SHFB), a Windows tool for creating help documentation from software projects.
File type category:
Source code and script file
Date updated: October 12, 2026
Sandcastle Help File Builder is developed by EWSoftware and is available as a standalone graphical application and as a package for Microsoft Visual Studio. It uses shfbproj files as project definitions for building documentation.
An shfbproj file stores the settings for an SHFB documentation project. These settings can include the source assemblies and related files, documentation options, presentation settings, and build configuration.
The file is an input to SHFB rather than the completed help documentation. SHFB reads the project file and its referenced source files to generate the selected help output. The shfbproj format remains the native project format used by Sandcastle Help File Builder on Microsoft Windows.
Open an shfbproj file with Sandcastle Help File Builder on Microsoft Windows. The project can be opened from the SHFB standalone application or through its Microsoft Visual Studio package, where available.
An shfbproj file is a project definition and does not normally need conversion to another file format. Open it in Sandcastle Help File Builder to edit its settings or build the documentation output.
Software applications that can open shfbproj files:
Microsoft Windows
Software applications that can edit shfbproj files:
Microsoft Windows
Software capable of saving shfbproj files:
Microsoft Windows
Software apps that create shfbproj files:
Microsoft Windows
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