diff --git a/src/OpenFOAM/global/fileOperations/collatedFileOperation/OFstreamCollator.C b/src/OpenFOAM/global/fileOperations/collatedFileOperation/OFstreamCollator.C
index 28bcfbe0ff..b5a3ced736 100644
--- a/src/OpenFOAM/global/fileOperations/collatedFileOperation/OFstreamCollator.C
+++ b/src/OpenFOAM/global/fileOperations/collatedFileOperation/OFstreamCollator.C
@@ -29,6 +29,7 @@ License
 #include "OFstreamCollator.H"
 #include "OFstream.H"
 #include "decomposedBlockData.H"
+#include "dictionary.H"
 #include "masterUncollatedFileOperation.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
@@ -50,7 +51,8 @@ bool Foam::OFstreamCollator::writeFile
     const labelUList& recvSizes,
     const PtrList<SubList<char>>& slaveData,    // optional slave data
     IOstreamOption streamOpt,
-    const bool append
+    const bool append,
+    const dictionary* headerEntriesPtr
 )
 {
     if (debug)
@@ -93,7 +95,8 @@ bool Foam::OFstreamCollator::writeFile
                 objectType,
                 "",             // note
                 "",             // location (leave empty instead inaccurate)
-                fName.name()    // object name
+                fName.name(),   // object name
+                headerEntriesPtr
             );
         }
     }
@@ -210,7 +213,8 @@ void* Foam::OFstreamCollator::writeAll(void *threadarg)
                 ptr->sizes_,
                 slaveData,
                 ptr->streamOpt_,
-                ptr->append_
+                ptr->append_,
+                ptr->headerEntries_
             );
             if (!ok)
             {
@@ -345,7 +349,8 @@ bool Foam::OFstreamCollator::write
     const string& data,
     IOstreamOption streamOpt,
     const bool append,
-    const bool useThread
+    const bool useThread,
+    const dictionary* headerEntriesPtr
 )
 {
     // Determine (on master) sizes to receive. Note: do NOT use thread
@@ -383,7 +388,8 @@ bool Foam::OFstreamCollator::write
             recvSizes,
             dummySlaveData,
             streamOpt,
-            append
+            append,
+            headerEntriesPtr
         );
     }
     else if (totalSize <= maxBufferSize_)
@@ -420,7 +426,8 @@ bool Foam::OFstreamCollator::write
                 ),
                 recvSizes,
                 streamOpt,
-                append
+                append,
+                headerEntriesPtr
             )
         );
         writeData& fileAndData = fileAndDataPtr();
@@ -544,7 +551,8 @@ bool Foam::OFstreamCollator::write
                     data,
                     recvSizes,
                     streamOpt,
-                    append
+                    append,
+                    headerEntriesPtr
                 )
             );
 
diff --git a/src/OpenFOAM/global/fileOperations/collatedFileOperation/OFstreamCollator.H b/src/OpenFOAM/global/fileOperations/collatedFileOperation/OFstreamCollator.H
index de34d74a5d..1146cff2b4 100644
--- a/src/OpenFOAM/global/fileOperations/collatedFileOperation/OFstreamCollator.H
+++ b/src/OpenFOAM/global/fileOperations/collatedFileOperation/OFstreamCollator.H
@@ -63,6 +63,9 @@ SourceFiles
 namespace Foam
 {
 
+// Forward Declarations
+class dictionary;
+
 /*---------------------------------------------------------------------------*\
                         Class OFstreamCollator Declaration
 \*---------------------------------------------------------------------------*/
@@ -81,6 +84,7 @@ class OFstreamCollator
             PtrList<List<char>> slaveData_;
             const IOstreamOption streamOpt_;
             const bool append_;
+            const dictionary* headerEntries_;
 
             writeData
             (
@@ -90,7 +94,8 @@ class OFstreamCollator
                 const string& data,
                 const labelList& sizes,
                 IOstreamOption streamOpt,
-                const bool append
+                const bool append,
+                const dictionary* headerEntriesPtr = nullptr
             )
             :
                 comm_(comm),
@@ -100,7 +105,8 @@ class OFstreamCollator
                 sizes_(sizes),
                 slaveData_(),
                 streamOpt_(streamOpt),
-                append_(append)
+                append_(append),
+                headerEntries_(headerEntriesPtr)
             {}
 
             //- The (approximate) size of master + any optional slave data
@@ -153,7 +159,8 @@ class OFstreamCollator
             const labelUList& recvSizes,
             const PtrList<SubList<char>>& slaveData,
             IOstreamOption streamOpt,
-            const bool append
+            const bool append,
+            const dictionary* headerEntriesPtr
         );
 
         //- Write all files in stack
@@ -196,7 +203,8 @@ public:
             const string& data,
             IOstreamOption streamOpt,
             const bool append,
-            const bool useThread = true
+            const bool useThread = true,
+            const dictionary* headerEntriesPtr = nullptr
         );
 
         //- Wait for all thread actions to have finished
diff --git a/src/OpenFOAM/global/fileOperations/collatedFileOperation/collatedFileOperation.C b/src/OpenFOAM/global/fileOperations/collatedFileOperation/collatedFileOperation.C
index 977b75c857..85c1536cc4 100644
--- a/src/OpenFOAM/global/fileOperations/collatedFileOperation/collatedFileOperation.C
+++ b/src/OpenFOAM/global/fileOperations/collatedFileOperation/collatedFileOperation.C
@@ -493,6 +493,16 @@ bool Foam::fileOperations::collatedFileOperation::writeObject
                 ok = ok && io.writeHeader(os);
 
                 IOobject::bannerEnabled(old);
+
+                // Additional header content
+                dictionary dict;
+                decomposedBlockData::writeExtraHeaderContent
+                (
+                    dict,
+                    streamOpt,
+                    io
+                );
+                os.setHeaderEntries(dict);
             }
 
             ok = ok && io.writeData(os);
diff --git a/src/OpenFOAM/global/fileOperations/collatedFileOperation/threadedCollatedOFstream.C b/src/OpenFOAM/global/fileOperations/collatedFileOperation/threadedCollatedOFstream.C
index 07d1ffc146..bc62facfd2 100644
--- a/src/OpenFOAM/global/fileOperations/collatedFileOperation/threadedCollatedOFstream.C
+++ b/src/OpenFOAM/global/fileOperations/collatedFileOperation/threadedCollatedOFstream.C
@@ -44,7 +44,8 @@ Foam::threadedCollatedOFstream::threadedCollatedOFstream
     writer_(writer),
     pathName_(pathName),
     compression_(streamOpt.compression()),
-    useThread_(useThread)
+    useThread_(useThread),
+    headerEntries_()
 {}
 
 
@@ -59,9 +60,18 @@ Foam::threadedCollatedOFstream::~threadedCollatedOFstream()
         str(),
         IOstreamOption(IOstream::BINARY, version(), compression_),
         false,  // append=false
-        useThread_
+        useThread_,
+        &headerEntries_
     );
 }
 
 
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+void Foam::threadedCollatedOFstream::setHeaderEntries(const dictionary& dict)
+{
+    headerEntries_ = dict;
+}
+
+
 // ************************************************************************* //
diff --git a/src/OpenFOAM/global/fileOperations/collatedFileOperation/threadedCollatedOFstream.H b/src/OpenFOAM/global/fileOperations/collatedFileOperation/threadedCollatedOFstream.H
index fabc873f5e..1469ed5c31 100644
--- a/src/OpenFOAM/global/fileOperations/collatedFileOperation/threadedCollatedOFstream.H
+++ b/src/OpenFOAM/global/fileOperations/collatedFileOperation/threadedCollatedOFstream.H
@@ -38,6 +38,7 @@ SourceFiles
 #ifndef threadedCollatedOFstream_H
 #define threadedCollatedOFstream_H
 
+#include "dictionary.H"
 #include "StringStream.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -67,6 +68,9 @@ class threadedCollatedOFstream
 
         const bool useThread_;
 
+        //- Additional FoamFile entries for decomposed data
+        dictionary headerEntries_;
+
 
 public:
 
@@ -86,6 +90,12 @@ public:
     ~threadedCollatedOFstream();
 
 
+    // Member Functions
+
+        //- Define the header entries for the data block(s)
+        void setHeaderEntries(const dictionary& dict);
+
+
     // Additional constructors and methods (as per v2012 and earlier)
     #ifdef Foam_IOstream_extras