diff --git a/Desktop/data/importers/excelimporter.h b/Desktop/data/importers/excelimporter.h
index 90c027cfae..52b0c31dfa 100644
--- a/Desktop/data/importers/excelimporter.h
+++ b/Desktop/data/importers/excelimporter.h
@@ -30,9 +30,6 @@ class ExcelImporter : public Importer
 	ExcelImporter();
 	virtual ~ExcelImporter() {}
 
-
-	bool importerDeliversLabels() const override { return false; }
-
 protected:
 	ImportDataSet* loadFile(const std::string &locator, std::function<void(int)> progressCallback) override;
 
diff --git a/Engine/CMakeLists.txt b/Engine/CMakeLists.txt
index bfa5030a85..3c44b422e0 100644
--- a/Engine/CMakeLists.txt
+++ b/Engine/CMakeLists.txt
@@ -107,16 +107,16 @@ if(WINDOWS)
     POST_BUILD DEPENDS ${CMAKE_BINARY_DIR}/R-Interface/libR-Interface.dll
     COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_LIBGCC_S_SEH_DLL}
             ${CMAKE_BINARY_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_LIBSTDCPP_DLL}
-			${CMAKE_BINARY_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_MSYS_DLL}
-			${CMAKE_BINARY_DIR}
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_LIBSTDCPP_DLL}
+            ${CMAKE_BINARY_DIR}
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_MSYS_DLL}
+            ${CMAKE_BINARY_DIR}
     COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_LIBWINPTHREAD_DLL}
             ${CMAKE_BINARY_DIR}
-			#COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_LIBJSONCPP_DLL}
-	#        ${CMAKE_BINARY_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_LIBREADSTAT_DLL}
-			${CMAKE_BINARY_DIR}
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_LIBREADSTAT_DLL}
+            ${CMAKE_BINARY_DIR}
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_LIBFREEXL_DLL}
+            ${CMAKE_BINARY_DIR}
     COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_ZLIB_DLL}
             ${CMAKE_BINARY_DIR}
     COMMAND ${CMAKE_COMMAND} -E copy_if_different ${RTOOLS_LIBICONV_DLL}
diff --git a/Tools/CMake/Install.cmake b/Tools/CMake/Install.cmake
index be07380e7c..ed8e82fbd4 100644
--- a/Tools/CMake/Install.cmake
+++ b/Tools/CMake/Install.cmake
@@ -384,10 +384,11 @@ if(WIN32)
   install(
     FILES ${RTOOLS_LIBGCC_S_SEH_DLL}
           ${RTOOLS_LIBSTDCPP_DLL}
-		  ${RTOOLS_MSYS_DLL}
+          ${RTOOLS_MSYS_DLL}
           ${RTOOLS_LIBWINPTHREAD_DLL}
-		  #${RTOOLS_LIBJSONCPP_DLL}
-		  ${RTOOLS_LIBREADSTAT_DLL}
+          #${RTOOLS_LIBJSONCPP_DLL}
+          ${RTOOLS_LIBREADSTAT_DLL}
+          ${RTOOLS_LIBFREEXL_DLL}
           ${RTOOLS_ZLIB_DLL}
           ${RTOOLS_LIBICONV_DLL}
           ${_LIB_R_INTERFACE_DLL}
diff --git a/Tools/windows/msix/AppxManifest-nightly.xml.in b/Tools/windows/msix/AppxManifest-nightly.xml.in
index c43481c078..c06d60d3bd 100644
--- a/Tools/windows/msix/AppxManifest-nightly.xml.in
+++ b/Tools/windows/msix/AppxManifest-nightly.xml.in
@@ -55,6 +55,8 @@
             <uap:FileType>.csv</uap:FileType>
             <uap:FileType>.sav</uap:FileType>
             <uap:FileType>.ods</uap:FileType>
+            <uap:FileType>.xls</uap:FileType>
+            <uap:FileType>.xlsx</uap:FileType>
             <uap:FileType>.zsav</uap:FileType>
             <uap:FileType>.xpt</uap:FileType>
             <uap:FileType>.por</uap:FileType>
diff --git a/Tools/windows/msix/AppxManifest-sideload.xml.in b/Tools/windows/msix/AppxManifest-sideload.xml.in
index 56dbe8ca11..ba08066439 100644
--- a/Tools/windows/msix/AppxManifest-sideload.xml.in
+++ b/Tools/windows/msix/AppxManifest-sideload.xml.in
@@ -55,6 +55,8 @@
             <uap:FileType>.csv</uap:FileType>
             <uap:FileType>.sav</uap:FileType>
             <uap:FileType>.ods</uap:FileType>
+            <uap:FileType>.xls</uap:FileType>
+            <uap:FileType>.xlsx</uap:FileType>
             <uap:FileType>.zsav</uap:FileType>
             <uap:FileType>.xpt</uap:FileType>
             <uap:FileType>.por</uap:FileType>
diff --git a/Tools/windows/msix/AppxManifest-store-beta.xml.in b/Tools/windows/msix/AppxManifest-store-beta.xml.in
index ab33bc8fd0..fae2b0ade1 100644
--- a/Tools/windows/msix/AppxManifest-store-beta.xml.in
+++ b/Tools/windows/msix/AppxManifest-store-beta.xml.in
@@ -55,6 +55,8 @@
             <uap:FileType>.csv</uap:FileType>
             <uap:FileType>.sav</uap:FileType>
             <uap:FileType>.ods</uap:FileType>
+            <uap:FileType>.xls</uap:FileType>
+            <uap:FileType>.xlsx</uap:FileType>
             <uap:FileType>.zsav</uap:FileType>
             <uap:FileType>.xpt</uap:FileType>
             <uap:FileType>.por</uap:FileType>
diff --git a/Tools/windows/msix/AppxManifest-store.xml.in b/Tools/windows/msix/AppxManifest-store.xml.in
index 84eebdd1c5..82b7a389f6 100644
--- a/Tools/windows/msix/AppxManifest-store.xml.in
+++ b/Tools/windows/msix/AppxManifest-store.xml.in
@@ -55,6 +55,8 @@
             <uap:FileType>.csv</uap:FileType>
             <uap:FileType>.sav</uap:FileType>
             <uap:FileType>.ods</uap:FileType>
+            <uap:FileType>.xls</uap:FileType>
+            <uap:FileType>.xlsx</uap:FileType>
             <uap:FileType>.zsav</uap:FileType>
             <uap:FileType>.xpt</uap:FileType>
             <uap:FileType>.por</uap:FileType>