diff --git a/components/fpspreadsheet/tests/spreadtestgui.lpi b/components/fpspreadsheet/tests/spreadtestgui.lpi
index 8b11c02d0..4dfdcacc7 100644
--- a/components/fpspreadsheet/tests/spreadtestgui.lpi
+++ b/components/fpspreadsheet/tests/spreadtestgui.lpi
@@ -109,6 +109,7 @@
       <Unit15>
         <Filename Value="errortests.pas"/>
         <IsPartOfProject Value="True"/>
+        <UnitName Value="errortests"/>
       </Unit15>
       <Unit16>
         <Filename Value="virtualmodetests.pas"/>
diff --git a/components/fpspreadsheet/uvirtuallayer_ole.pas b/components/fpspreadsheet/uvirtuallayer_ole.pas
index 07351a162..bbaf6162f 100644
--- a/components/fpspreadsheet/uvirtuallayer_ole.pas
+++ b/components/fpspreadsheet/uvirtuallayer_ole.pas
@@ -228,21 +228,28 @@ var
   Splitted: TStringList;
   j: integer;
   SIDChild: SID;
+
   function FindSiblingWithName(const AName: WideString; const AStartSibling: integer): SID;
+  var
+    n, ab: WideString;
   begin
-    if (FDirectory[AStartSibling]._ab=AName) and (FDirectory[AStartSibling]._mse<>BYTE(STGTY_INVALID)) then begin
+    n := UpperCase(AName);
+    ab := UpperCase(FDirectory[AStartSibling]._ab);
+    if (n = ab) and (FDirectory[AStartSibling]._mse <> BYTE(STGTY_INVALID)) then
+    begin
       Result:=FDirectory[AStartSibling]._sidChild;
-    end else begin
+    end else
+    begin
       Result:=WINCOMPOUND_NOSID;
-      if FDirectory[AStartSibling]._sidLeftSib<>WINCOMPOUND_NOSID then begin
+      if FDirectory[AStartSibling]._sidLeftSib<>WINCOMPOUND_NOSID then
         Result:=FindSiblingWithName(AName,FDirectory[AStartSibling]._sidLeftSib);
-      end;
-      if Result<>WINCOMPOUND_NOSID then exit;
-      if FDirectory[AStartSibling]._sidRightSib<>WINCOMPOUND_NOSID then begin
+      if Result<>WINCOMPOUND_NOSID then
+        exit;
+      if FDirectory[AStartSibling]._sidRightSib<>WINCOMPOUND_NOSID then
         Result:=FindSiblingWithName(AName,FDirectory[AStartSibling]._sidRightSib);
-      end;
     end;
   end;
+
 begin
   Splitted:=TStringList.Create;
   SplitPath(APath,Splitted);
@@ -265,21 +272,26 @@ var
   Splitted: TStringList;
   j: integer;
   SIDChild: SID;
+
   function FindSiblingWithName(const AName: WideString; const AStartSibling: integer): SID;
+  var
+    n, ab: WideString;
   begin
-    if (FDirectory[AStartSibling]._ab=AName) and (FDirectory[AStartSibling]._mse<>BYTE(STGTY_INVALID)) then begin
-      Result:=AStartSibling;
-    end else begin
+    n := UpperCase(AName);
+    ab := UpperCase(FDirectory[AStartSibling]._ab);
+    if (n = ab) and (FDirectory[AStartSibling]._mse <> BYTE(STGTY_INVALID)) then
+      Result := AStartSibling
+    else begin
       Result:=WINCOMPOUND_NOSID;
-      if FDirectory[AStartSibling]._sidLeftSib<>WINCOMPOUND_NOSID then begin
+      if FDirectory[AStartSibling]._sidLeftSib<>WINCOMPOUND_NOSID then
         Result:=FindSiblingWithName(AName,FDirectory[AStartSibling]._sidLeftSib);
-      end;
-      if Result<>WINCOMPOUND_NOSID then exit;
-      if FDirectory[AStartSibling]._sidRightSib<>WINCOMPOUND_NOSID then begin
+      if Result<>WINCOMPOUND_NOSID then
+        exit;
+      if FDirectory[AStartSibling]._sidRightSib<>WINCOMPOUND_NOSID then
         Result:=FindSiblingWithName(AName,FDirectory[AStartSibling]._sidRightSib);
-      end;
     end;
   end;
+
 begin
   Splitted:=TStringList.Create;
   SplitPath(APath,Splitted);
diff --git a/components/fpspreadsheet/xlsbiff5.pas b/components/fpspreadsheet/xlsbiff5.pas
index f5bd3deb6..5d549da23 100755
--- a/components/fpspreadsheet/xlsbiff5.pas
+++ b/components/fpspreadsheet/xlsbiff5.pas
@@ -785,7 +785,7 @@ begin
     // Rather than lose data when reading it, let the application programmer deal
     // with the problem or purposefully ignore it.
     AnsiValue := Copy(AnsiValue, 1, MAXBYTES);
-    Workbook.AddErrorMsg(rsInvalidCharacterInCell, [
+    Workbook.AddErrorMsg(rsTruncateTooLongCellText, [
       MAXBYTES, GetCellString(ARow, ACol)
     ]);
   end;