diff --git a/components/fpspreadsheet/examples/visual/fpsctrls/main.lfm b/components/fpspreadsheet/examples/visual/fpsctrls/main.lfm
index 8e7b5b06d..e527c6d0f 100644
--- a/components/fpspreadsheet/examples/visual/fpsctrls/main.lfm
+++ b/components/fpspreadsheet/examples/visual/fpsctrls/main.lfm
@@ -903,21 +903,21 @@ object MainForm: TMainForm
       WorkbookSource = WorkbookSource
       Caption = 'Fraction (1 digit)'
       NumberFormat = nfFraction
-      NumberFormatString = '#" "#/#'
+      NumberFormatString = '# #/#'
     end
     object AcNumFormatFraction2: TsNumberFormatAction
       Category = 'FPSpreadsheet'
       WorkbookSource = WorkbookSource
       Caption = 'Fraction (2 digits)'
       NumberFormat = nfFraction
-      NumberFormatString = '#" "##/##'
+      NumberFormatString = '# ##/##'
     end
     object AcNumFormatFraction3: TsNumberFormatAction
       Category = 'FPSpreadsheet'
       WorkbookSource = WorkbookSource
       Caption = 'Fraction (3 digits)'
       NumberFormat = nfFraction
-      NumberFormatString = '#" "###/###'
+      NumberFormatString = '# ###/###'
     end
     object AcNumFormatDateTime: TsNumberFormatAction
       Category = 'FPSpreadsheet'
diff --git a/components/fpspreadsheet/fpsnumformatparser.pas b/components/fpspreadsheet/fpsnumformatparser.pas
index 0f68949c7..d191adb18 100644
--- a/components/fpspreadsheet/fpsnumformatparser.pas
+++ b/components/fpspreadsheet/fpsnumformatparser.pas
@@ -122,13 +122,9 @@ type
     // Format string
     function BuildFormatString(ADialect: TsNumFormatDialect): String; virtual;
     function BuildFormatStringFromSection(ASection: Integer;
-      ADialect: TsNumFormatDialect; AStartIndex: Integer = 0): String; virtual;
+      ADialect: TsNumFormatDialect): String; virtual;
     // NumberFormat
     procedure EvalNumFormatOfSection(ASection: Integer);
-    {; out ANumFormat: TsNumberFormat;
-      out ADecimals: byte; out ANumerator, ADenominator: Integer;
-      out ACurrencySymbol: String; out AColor: TsColor);
-      }
     function IsCurrencyAt(ASection: Integer; out ANumFormat: TsNumberFormat;
       out ADecimals: byte; out ACurrencySymbol: String; out AColor: TsColor): Boolean;
     function IsDateAt(ASection,AIndex: Integer; out ANumberFormat: TsNumberFormat;
@@ -296,7 +292,7 @@ end;
 { Creates a format string for the given section. This implementation covers
   the formatstring dialects of fpc (nfdDefault) and Excel (nfdExcel). }
 function TsNumFormatParser.BuildFormatStringFromSection(ASection: Integer;
-  ADialect: TsNumFormatDialect; AStartIndex: Integer = 0): String;
+  ADialect: TsNumFormatDialect): String;
 var
   element: TsNumFormatElement;
   i: Integer;
@@ -588,7 +584,7 @@ begin
         exit;
       end;
       // nfFraction
-      if IsTextAt(' ', ASection, next) and
+      if (IsTokenAt(nftSpace, ASection, next) or IsTextAt(' ', ASection, next)) and
          IsNumberAt(ASection, next+1, nf, num, next) and
          IsTokenAt(nftFraction, ASection, next) and
          IsNumberAt(ASection, next+1, nf, denom, next) and
@@ -659,7 +655,7 @@ begin
       end;
   end;
 
-  // What is left must be a custom format.
+  // If we get here it must be a custom format.
   FSections[ASection].NumFormat := nfCustom;
 end;
 
diff --git a/components/fpspreadsheet/fpsutils.pas b/components/fpspreadsheet/fpsutils.pas
index ea8f3875e..d916df50f 100644
--- a/components/fpspreadsheet/fpsutils.pas
+++ b/components/fpspreadsheet/fpsutils.pas
@@ -1151,7 +1151,7 @@ begin
     DupeString('#', ANumeratorDigits), DupeString('#', ADenominatorDigits)
   ]);
   if AMixedFraction then
-    Result := '#" "' + Result;
+    Result := '# ' + Result;
 end;
 
 {@@ ----------------------------------------------------------------------------
diff --git a/components/fpspreadsheet/reference/BIFFExplorer/BIFFExplorer.lpi b/components/fpspreadsheet/reference/BIFFExplorer/BIFFExplorer.lpi
index 153eb8ebe..98e61dc83 100644
--- a/components/fpspreadsheet/reference/BIFFExplorer/BIFFExplorer.lpi
+++ b/components/fpspreadsheet/reference/BIFFExplorer/BIFFExplorer.lpi
@@ -20,12 +20,21 @@
     <VersionInfo>
       <StringTable ProductVersion=""/>
     </VersionInfo>
+    <MacroValues Count="1">
+      <Macro1 Name="LCLWidgetType" Value="win32"/>
+    </MacroValues>
     <BuildModes Count="3">
       <Item1 Name="Release" Default="True"/>
       <Item2 Name="Debug">
+        <MacroValues Count="1">
+          <Macro1 Name="LCLWidgetType" Value="win32"/>
+        </MacroValues>
         <CompilerOptions>
           <Version Value="11"/>
           <PathDelim Value="\"/>
+          <Target>
+            <Filename Value="bin\$(TargetCPU)-$(TargetOS)\BiffExplorer"/>
+          </Target>
           <SearchPaths>
             <IncludeFiles Value="$(ProjOutDir)"/>
             <OtherUnitFiles Value="mrumenu"/>
@@ -48,6 +57,9 @@
         </CompilerOptions>
       </Item2>
       <Item3 Name="Debug with heaptrace">
+        <MacroValues Count="1">
+          <Macro1 Name="LCLWidgetType" Value="win32"/>
+        </MacroValues>
         <CompilerOptions>
           <Version Value="11"/>
           <PathDelim Value="\"/>
@@ -165,7 +177,6 @@
       <Unit10>
         <Filename Value="betypes.pas"/>
         <IsPartOfProject Value="True"/>
-        <UnitName Value="beTypes"/>
       </Unit10>
     </Units>
   </ProjectOptions>