diff --git a/lcl/interfaces/carbon/carbonstrings.pp b/lcl/interfaces/carbon/carbonstrings.pp
index 8e79076a03..a765c711c2 100644
--- a/lcl/interfaces/carbon/carbonstrings.pp
+++ b/lcl/interfaces/carbon/carbonstrings.pp
@@ -26,7 +26,7 @@ uses
  // rtl+ftl
   Classes, SysUtils,
  // LCL
-  LCLProc, LCLType, Graphics, Controls, StdCtrls,
+  LCLProc, LCLType, Graphics, Controls, StdCtrls, LazUtf8Classes,
  // LCL Carbon
   CarbonEdits, CarbonListViews;
 
@@ -93,6 +93,8 @@ type
     procedure Clear; override;
     procedure Delete(Index: Integer); override;
     procedure Insert(Index: Integer; const S: string); override;
+    procedure LoadFromFile(const FileName: string); override;
+    procedure SaveToFile(const FileName: string); override;
   public
     property Owner: TCarbonMemo read FOwner;
   end;
@@ -429,5 +431,29 @@ begin
   FOwner.InsertLine(Index, S);
 end;
 
+procedure TCarbonMemoStrings.LoadFromFile(const FileName: string);
+var
+  TheStream: TFileStreamUTF8;
+begin
+  TheStream:=TFileStreamUtf8.Create(FileName,fmOpenRead or fmShareDenyWrite);
+  try
+    LoadFromStream(TheStream);
+  finally
+    TheStream.Free;
+  end;
+end;
+
+procedure TCarbonMemoStrings.SaveToFile(const FileName: string);
+var
+  TheStream: TFileStreamUTF8;
+begin
+  TheStream:=TFileStreamUtf8.Create(FileName,fmCreate);
+  try
+    SaveToStream(TheStream);
+  finally
+    TheStream.Free;
+  end;
+end;
+
 
 end.
diff --git a/lcl/interfaces/cocoa/cocoawsstdctrls.pp b/lcl/interfaces/cocoa/cocoawsstdctrls.pp
index cf52bd2bd9..7acdb8efa8 100644
--- a/lcl/interfaces/cocoa/cocoawsstdctrls.pp
+++ b/lcl/interfaces/cocoa/cocoawsstdctrls.pp
@@ -26,7 +26,8 @@ uses
   // Libs
   MacOSAll, CocoaAll,
   // LCL
-  Controls, StdCtrls, Graphics, LCLType, LMessages, LCLProc, LCLMessageGlue, Classes,
+  Controls, StdCtrls, Graphics, LCLType, LMessages, LCLProc, LCLMessageGlue,
+  Classes, LazUtf8Classes,
   // Widgetset
   WSStdCtrls, WSLCLClasses, WSControls, WSProc,
   // LCL Cocoa
@@ -573,6 +574,8 @@ type
     procedure Clear; override;
     procedure Delete(Index: Integer); override;
     procedure Insert(Index: Integer; const S: string); override;
+    procedure LoadFromFile(const FileName: string); override;
+    procedure SaveToFile(const FileName: string); override;
   end;
 
 { TCocoaMemoStrings }
@@ -681,6 +684,30 @@ begin
   SetTextStr(txt)
 end;
 
+procedure TCocoaMemoStrings.LoadFromFile(const FileName: string);
+var
+  TheStream: TFileStreamUTF8;
+begin
+  TheStream:=TFileStreamUtf8.Create(FileName,fmOpenRead or fmShareDenyWrite);
+  try
+    LoadFromStream(TheStream);
+  finally
+    TheStream.Free;
+  end;
+end;
+
+procedure TCocoaMemoStrings.SaveToFile(const FileName: string);
+var
+  TheStream: TFileStreamUTF8;
+begin
+  TheStream:=TFileStreamUtf8.Create(FileName,fmCreate);
+  try
+    SaveToStream(TheStream);
+  finally
+    TheStream.Free;
+  end;
+end;
+
 { TCocoaWSCustomMemo }
 
 function MemoTextView(AWinControl: TWinControl): TCocoaTextView;