--- ./pxr/usd/sdf/fileFormat.h
+++ ./pxr/usd/sdf/fileFormat.h
@@ -265,9 +265,9 @@
     /// Returns the file format instance with the specified \p formatId
     /// identifier. If a format with a matching identifier is not found, this
     /// returns a null file format pointer.
-    SDF_API 
-    static SdfFileFormatConstPtr FindById(
-        const TfToken& formatId);
+    // SDF_API 
+    // static SdfFileFormatConstPtr FindById(
+    //     const TfToken& formatId);

     /// Returns the file format instance that supports the extension for
     /// \p path.  If a format with a matching extension is not found, this
@@ -278,10 +278,10 @@
     /// the file format that is registered as the primary plugin will be
     /// returned. Otherwise, the file format whose target matches \p target
     /// will be returned.
-    SDF_API
-    static SdfFileFormatConstPtr FindByExtension(
-        const std::string& path,
-        const std::string& target = std::string());
+    // SDF_API
+    // static SdfFileFormatConstPtr FindByExtension(
+    //     const std::string& path,
+    //     const std::string& target = std::string());

     /// Returns a file format instance that supports the extension for \p
     /// path and whose target matches one of those specified by the given