diff --git a/docs/docs/dotnet-api-docs.md b/docs/docs/dotnet-api-docs.md
index f216084b375..d34e1c5686c 100644
--- a/docs/docs/dotnet-api-docs.md
+++ b/docs/docs/dotnet-api-docs.md
@@ -66,7 +66,7 @@ If [source link](https://learn.microsoft.com/en-us/dotnet/standard/library-guida
 
 ## Generate from projects or solutions
 
-When the file extension is `.csproj`, `.vbproj` or `.sln`, docfx uses [`MSBuildWorkspace`](https://gist.github.com/DustinCampbell/32cd69d04ea1c08a16ae5c4cd21dd3a3) to perform a design-time build of the projects before generating API docs.
+When the file extension is `.csproj`, `.vbproj`, `.sln` or `slnf`, docfx uses [`MSBuildWorkspace`](https://gist.github.com/DustinCampbell/32cd69d04ea1c08a16ae5c4cd21dd3a3) to perform a design-time build of the projects before generating API docs.
 
 In order to successfully load an MSBuild project, .NET Core SDK must be installed and available globally. The installation must have the necessary workloads and components to support the projects you'll be loading.
 
diff --git a/docs/reference/docfx-cli-reference.md b/docs/reference/docfx-cli-reference.md
index c0431290c64..721b9d1f51f 100644
--- a/docs/reference/docfx-cli-reference.md
+++ b/docs/reference/docfx-cli-reference.md
@@ -57,7 +57,7 @@ docfx metadata [<projects>] [--property <n1>=<v1>;<n2>=<v2>]
     `<projects>` specifies the projects to have metadata extracted. There are several approaches to extract language metadata.
 
     1. From a supported file or file list
-      Supported file extensions include `.csproj`, `.vbproj`, `.sln`, `project.json`, `dll` assembly file, `.cs` source file and `.vb` source file.
+      Supported file extensions include `.csproj`, `.vbproj`, `.sln`, `.slnf`, `exe`, `dll` assembly file, `.cs` source file and `.vb` source file.
 
       Multiple files are separated by whitespace, e.g. `docfx metadata Class1.cs a.csproj`
 
diff --git a/src/Docfx.Dotnet/DotnetApiCatalog.Compile.cs b/src/Docfx.Dotnet/DotnetApiCatalog.Compile.cs
index feb125092ea..ebc70691622 100644
--- a/src/Docfx.Dotnet/DotnetApiCatalog.Compile.cs
+++ b/src/Docfx.Dotnet/DotnetApiCatalog.Compile.cs
@@ -41,7 +41,7 @@ partial class DotnetApiCatalog
         {
             foreach (var file in unsupportedFiles)
             {
-                Logger.LogWarning($"Skip unsupported file {file}");
+                Logger.LogWarning($"Skip unsupported file {file.NormalizedPath}");
             }
         }
 
diff --git a/src/Docfx.Dotnet/FileInformation.cs b/src/Docfx.Dotnet/FileInformation.cs
index 84acaab89b2..67eab3e79e0 100644
--- a/src/Docfx.Dotnet/FileInformation.cs
+++ b/src/Docfx.Dotnet/FileInformation.cs
@@ -46,6 +46,7 @@ private static FileType GetFileType(string filePath)
         switch (extension.ToLowerInvariant())
         {
             case ".sln":
+            case ".slnf":
                 return FileType.Solution;
             case ".csproj":
             case ".vbproj":