diff --git a/OOXML/Projects/Linux/BinDocument/BinDocument.pro b/OOXML/Projects/Linux/BinDocument/BinDocument.pro
index 5f7d9c6838..a448adcaae 100644
--- a/OOXML/Projects/Linux/BinDocument/BinDocument.pro
+++ b/OOXML/Projects/Linux/BinDocument/BinDocument.pro
@@ -25,12 +25,15 @@ DEFINES += UNICODE \
 	DONT_WRITE_EMBEDDED_FONTS \
 	AVS_USE_CONVERT_PPTX_TOCUSTOM_VML
 
+CONFIG += precompile_header
+PRECOMPILED_HEADER = precompiled.h
+HEADERS += precompiled.h
 
 SOURCES += \
 	../../../Binary/Document/DocWrapper/DocxSerializer.cpp \
 	../../../Binary/Document/DocWrapper/FontProcessor.cpp \
 	../../../Binary/Document/DocWrapper/XlsxSerializer.cpp \
-        ../../../Binary/Document/DocWrapper/ChartSerializer.cpp \
+	../../../Binary/Document/DocWrapper/ChartSerializer.cpp \
 	../../../Binary/Document/BinWriter/BinWriters.cpp \
 	../../../Binary/Sheets/Common/Common.cpp \
 	../../../Binary/Sheets/Reader/ChartFromToBinary.cpp \
diff --git a/OOXML/Projects/Linux/BinDocument/precompiled.h b/OOXML/Projects/Linux/BinDocument/precompiled.h
new file mode 100644
index 0000000000..d5a90bd57e
--- /dev/null
+++ b/OOXML/Projects/Linux/BinDocument/precompiled.h
@@ -0,0 +1,19 @@
+#include <string>
+#include <iostream>
+#include <memory.h>
+#include <map>
+#include <boost/make_shared.hpp>
+#include <vector>
+#include <boost/lexical_cast.hpp>
+#include <boost/unordered_map.hpp>
+#include <algorithm>
+#include <unordered_map>
+#include <stdio.h>
+#include <stack>
+#include <list>
+#include <windows.h>
+#include <boost/shared_ptr.hpp>
+
+#include "../../../Binary/Document/BinWriter/BinReaderWriterDefines.h"
+#include "../../../Binary/Sheets/Common/BinReaderWriterDefines.h"
+#include "../../../Binary/Sheets/Common/Common.h"
diff --git a/OOXML/Projects/Linux/DocxFormatLib/DocxFormatLib.pro b/OOXML/Projects/Linux/DocxFormatLib/DocxFormatLib.pro
index 03ffd66156..787e7c0dc0 100644
--- a/OOXML/Projects/Linux/DocxFormatLib/DocxFormatLib.pro
+++ b/OOXML/Projects/Linux/DocxFormatLib/DocxFormatLib.pro
@@ -22,6 +22,10 @@ DEFINES +=  UNICODE _UNICODE \
 #BOOST
 include($$PWD/../../../../Common/3dParty/boost/boost.pri)
 
+CONFIG += precompile_header
+PRECOMPILED_HEADER = precompiled.h
+HEADERS += precompiled.h
+
 core_release {
 SOURCES += \
 	docx_format_logic.cpp
diff --git a/OOXML/Projects/Linux/DocxFormatLib/precompiled.h b/OOXML/Projects/Linux/DocxFormatLib/precompiled.h
new file mode 100644
index 0000000000..770201a9de
--- /dev/null
+++ b/OOXML/Projects/Linux/DocxFormatLib/precompiled.h
@@ -0,0 +1,71 @@
+#include <string>
+#include <iostream>
+#include <memory.h>
+#include <map>
+#include <boost/make_shared.hpp>
+#include <vector>
+#include <boost/lexical_cast.hpp>
+#include <boost/unordered_map.hpp>
+#include <algorithm>
+#include <unordered_map>
+#include <stdio.h>
+#include <stack>
+#include <list>
+#include <windows.h>
+#include <boost/shared_ptr.hpp>
+
+#include "../../../Base/Base.h"
+#include "../../../Base/Nullable.h"
+#include "../../../Common/ComplexTypes.h"
+#include "../../../Common/SimpleTypes_Shared.h"
+#include "../../../Common/SimpleTypes_Word.h"
+#include "../../../Common/Unit.h"
+#include "../../../DocxFormat/Drawing/Drawing.h"
+#include "../../../DocxFormat/External/HyperLink.h"
+#include "../../../DocxFormat/Logic/Annotations.h"
+#include "../../../DocxFormat/Logic/Hyperlink.h"
+#include "../../../DocxFormat/Logic/Paragraph.h"
+#include "../../../DocxFormat/Logic/ParagraphProperty.h"
+#include "../../../DocxFormat/Logic/Run.h"
+#include "../../../DocxFormat/Logic/RunProperty.h"
+#include "../../../DocxFormat/Logic/Sdt.h"
+#include "../../../DocxFormat/Logic/Shape.h"
+#include "../../../DocxFormat/Logic/Table.h"
+#include "../../../DocxFormat/Math/OMath.h"
+#include "../../../DocxFormat/Math/oMathPara.h"
+#include "../../../DocxFormat/Media/Image.h"
+#include "../../../DocxFormat/Media/Media.h"
+#include "../../../DocxFormat/Media/OleObject.h"
+#include "../../../DocxFormat/App.h"
+#include "../../../DocxFormat/Comments.h"
+#include "../../../DocxFormat/Core.h"
+#include "../../../DocxFormat/CustomXml.h"
+#include "../../../DocxFormat/Document.h"
+#include "../../../DocxFormat/Docx.h"
+#include "../../../DocxFormat/DocxFlat.h"
+#include "../../../DocxFormat/File.h"
+#include "../../../DocxFormat/FileTypes.h"
+#include "../../../DocxFormat/IFileContainer.h"
+#include "../../../DocxFormat/RId.h"
+#include "../../../DocxFormat/Styles.h"
+#include "../../../DocxFormat/Unit.h"
+#include "../../../DocxFormat/WritingElement.h"
+#include "../../../SystemUtility/SystemUtility.h"
+#include "../../../Base/Unit.h"
+#include "../../../XlsxFormat/Comments/Comments.h"
+#include "../../../XlsxFormat/Drawing/Drawing.h"
+#include "../../../XlsxFormat/SharedStrings/Run.h"
+#include "../../../XlsxFormat/SharedStrings/SharedStrings.h"
+#include "../../../XlsxFormat/Styles/rPr.h"
+#include "../../../XlsxFormat/Styles/Styles.h"
+#include "../../../XlsxFormat/Styles/TableStyles.h"
+#include "../../../XlsxFormat/Table/Table.h"
+#include "../../../XlsxFormat/Workbook/Workbook.h"
+#include "../../../XlsxFormat/Worksheets/Worksheet.h"
+#include "../../../XlsxFormat/Common.h"
+#include "../../../XlsxFormat/CommonInclude.h"
+#include "../../../XlsxFormat/FileTypes_Spreadsheet.h"
+#include "../../../XlsxFormat/WritingElement.h"
+#include "../../../XlsxFormat/Xlsx.h"
+#include "../../../MathEquation/Types.h"
+#include "../../../DocxFormat/Diagram/DiagramData.h"
diff --git a/OOXML/Projects/Linux/PPTXFormatLib/PPTXFormatLib.pro b/OOXML/Projects/Linux/PPTXFormatLib/PPTXFormatLib.pro
index ac32291a88..f11f9a76de 100644
--- a/OOXML/Projects/Linux/PPTXFormatLib/PPTXFormatLib.pro
+++ b/OOXML/Projects/Linux/PPTXFormatLib/PPTXFormatLib.pro
@@ -42,6 +42,10 @@ SOURCES += \
 	pptx_format_logic.cpp
 }
 
+CONFIG += precompile_header
+PRECOMPILED_HEADER = precompiled.h
+HEADERS += precompiled.h
+
 core_debug {
 SOURCES += \
 	../../../PPTXFormat/Logic/Media/WavAudioFile.cpp \
diff --git a/OOXML/Projects/Linux/PPTXFormatLib/precompiled.h b/OOXML/Projects/Linux/PPTXFormatLib/precompiled.h
new file mode 100644
index 0000000000..eaf0a89519
--- /dev/null
+++ b/OOXML/Projects/Linux/PPTXFormatLib/precompiled.h
@@ -0,0 +1,42 @@
+#include <string>
+#include <iostream>
+#include <memory.h>
+#include <map>
+#include <boost/make_shared.hpp>
+#include <vector>
+#include <boost/lexical_cast.hpp>
+#include <boost/unordered_map.hpp>
+#include <algorithm>
+#include <unordered_map>
+#include <stdio.h>
+#include <stack>
+#include <list>
+#include <windows.h>
+#include <boost/shared_ptr.hpp>
+
+#include "../../../PPTXFormat/FileTypes.h"
+#include "../../../PPTXFormat/Limit/BaseLimit.h"
+#include "../../../PPTXFormat/Logic/Runs/Run.h"
+#include "../../../PPTXFormat/Logic/Table/Table.h"
+#include "../../../PPTXFormat/Logic/ClrMap.h"
+#include "../../../PPTXFormat/Logic/ExtP.h"
+#include "../../../PPTXFormat/Logic/Hyperlink.h"
+#include "../../../PPTXFormat/Logic/Paragraph.h"
+#include "../../../PPTXFormat/Logic/Shape.h"
+#include "../../../PPTXFormat/Logic/SpTree.h"
+#include "../../../PPTXFormat/Logic/UniColor.h"
+#include "../../../PPTXFormat/Logic/UniFill.h"
+#include "../../../PPTXFormat/App.h"
+#include "../../../PPTXFormat/Comments.h"
+#include "../../../PPTXFormat/Core.h"
+#include "../../../PPTXFormat/FileContainer.h"
+#include "../../../PPTXFormat/Slide.h"
+#include "../../../PPTXFormat/SlideLayout.h"
+#include "../../../PPTXFormat/SlideMaster.h"
+#include "../../../PPTXFormat/TableStyles.h"
+#include "../../../PPTXFormat/Theme.h"
+#include "../../../PPTXFormat/WrapperFile.h"
+#include "../../../PPTXFormat/WrapperWritingElement.h"
+#include "../../../Binary/Presentation/BinaryFileReaderWriter.h"
+#include "../../../Binary/Presentation/BinReaderWriterDefines.h"
+#include "../../../Base/Nullable.h"
diff --git a/OOXML/Projects/Linux/XlsbFormatLib/XlsbFormatLib.pro b/OOXML/Projects/Linux/XlsbFormatLib/XlsbFormatLib.pro
index 31c86c0d32..ce14bcea2b 100644
--- a/OOXML/Projects/Linux/XlsbFormatLib/XlsbFormatLib.pro
+++ b/OOXML/Projects/Linux/XlsbFormatLib/XlsbFormatLib.pro
@@ -22,6 +22,10 @@ DEFINES +=  DONT_WRITE_EMBEDDED_FONTS
 #BOOST
 include($$PWD/../../../../Common/3dParty/boost/boost.pri)
 
+CONFIG += precompile_header
+PRECOMPILED_HEADER = precompiled.h
+HEADERS += precompiled.h
+
 core_release {
 SOURCES += \
 	xlsb_format_logic.cpp
diff --git a/OOXML/Projects/Linux/XlsbFormatLib/precompiled.h b/OOXML/Projects/Linux/XlsbFormatLib/precompiled.h
new file mode 100644
index 0000000000..64efeaddf1
--- /dev/null
+++ b/OOXML/Projects/Linux/XlsbFormatLib/precompiled.h
@@ -0,0 +1,34 @@
+#include <string>
+#include <iostream>
+#include <memory.h>
+#include <map>
+#include <boost/make_shared.hpp>
+#include <vector>
+#include <boost/lexical_cast.hpp>
+#include <boost/unordered_map.hpp>
+#include <algorithm>
+#include <unordered_map>
+#include <stdio.h>
+#include <stack>
+#include <list>
+#include <windows.h>
+#include <boost/shared_ptr.hpp>
+
+#include "../../../XlsbFormat/Xlsb.h"
+#include "../../../XlsbFormat/Biff12_records/ACBegin.h"
+#include "../../../XlsbFormat/Biff12_records/ACEnd.h"
+#include "../../../XlsbFormat/Biff12_records/Color.h"
+#include "../../../XlsbFormat/Biff12_records/CommonRecords.h"
+#include "../../../XlsbFormat/Biff12_records/Drawing.h"
+#include "../../../XlsbFormat/Biff12_records/FRTBegin.h"
+#include "../../../XlsbFormat/Biff12_records/FRTEnd.h"
+#include "../../../XlsbFormat/Biff12_records/OleObject.h"
+#include "../../../XlsbFormat/Biff12_records/ActiveX.h"
+#include "../../../XlsbFormat/Biff12_structures/CellRangeRef.h"
+#include "../../../XlsbFormat/Biff12_structures/FRTBlank.h"
+#include "../../../XlsbFormat/Biff12_structures/FRTHeader.h"
+#include "../../../XlsbFormat/Biff12_structures/RelID.h"
+#include "../../../XlsbFormat/Biff12_structures/XLWideString.h"
+#include "../../../XlsbFormat/Biff12_structures/PCDISrvFmt.h"
+#include "../../../XlsbFormat/Biff12_unions/ACUID.h"
+#include "../../../XlsbFormat/Biff12_unions/FRT.h"
diff --git a/OdfFile/Projects/Linux/OdfFormatLib.pro b/OdfFile/Projects/Linux/OdfFormatLib.pro
index 13e305a43d..23c6dbb7a0 100644
--- a/OdfFile/Projects/Linux/OdfFormatLib.pro
+++ b/OdfFile/Projects/Linux/OdfFormatLib.pro
@@ -29,6 +29,10 @@ CONFIG(debug, debug|release){
 DEFINES +=  _DEBUG
 }
 
+CONFIG += precompile_header
+PRECOMPILED_HEADER = precompiled.h
+HEADERS += precompiled.h
+
 core_release {
 SOURCES += \
 	odf_converter.cpp \
diff --git a/OdfFile/Projects/Linux/precompiled.h b/OdfFile/Projects/Linux/precompiled.h
new file mode 100644
index 0000000000..15e35ff4ce
--- /dev/null
+++ b/OdfFile/Projects/Linux/precompiled.h
@@ -0,0 +1,49 @@
+#include <string>
+#include <iosfwd>
+#include <ostream>
+#include <xml/simple_xml_writer.h>
+#include <xml/xmlchar.h>
+#include <vector>
+#include <iostream>
+#include <xml/attributes.h>
+#include <xml/utils.h>
+#include <sstream>
+#include <xml/xmlelement.h>
+#include <map>
+#include <boost/lexical_cast.hpp>
+#include <boost/regex.hpp>
+#include <boost/noncopyable.hpp>
+#include <boost/make_shared.hpp>
+#include <list>
+#include <boost/functional.hpp>
+#include <boost/regex.h>
+#include <boost/shared_ptr.hpp>
+#include <boost/unordered_map.hpp>
+#include <boost/ref.hpp>
+#include <boost/unordered_set.hpp>
+#include <algorithm>
+#include <utf8cpp/utf8.h>
+#include <boost/function.hpp>
+#include <boost/foreach.hpp>
+
+#include "../../Common/errors.h"
+#include "../../Common/logging.h"
+#include "../../Common/CPNoncopyable.h"
+#include "../../Common/CPOptional.h"
+#include "../../Common/CPScopedPtr.h"
+#include "../../Common/CPSharedPtr.h"
+#include "../../Common/xml/attributes.h"
+#include "../../Common/xml/nodetype.h"
+#include "../../Common/xml/simple_xml_writer.h"
+#include "../../Common/xml/utils.h"
+#include "../../Common/xml/xmlchar.h"
+#include "../../Common/xml/xmlelement.h"
+
+#include "../../DataTypes/bool.h"
+#include "../../DataTypes/borderstyle.h"
+#include "../../DataTypes/common_attlists.h"
+#include "../../DataTypes/length.h"
+#include "../../DataTypes/lengthorpercent.h"
+#include "../../DataTypes/odfattributes.h"
+#include "../../DataTypes/percent.h"
+#include "../../DataTypes/verticalalign.h"
diff --git a/TxtFile/Source/TxtFormat/File.cpp b/TxtFile/Source/TxtFormat/File.cpp
index 1f859b5145..9afbfca07e 100644
--- a/TxtFile/Source/TxtFormat/File.cpp
+++ b/TxtFile/Source/TxtFormat/File.cpp
@@ -106,30 +106,13 @@ namespace NSEncoding
 		}
 		else
 		{
-			static const std::map<int, std::string>::const_iterator pFind = NSUnicodeConverter::mapEncodingsICU.find(code_page);
+			const NSUnicodeConverter::EncodindId& oEncodindId = NSUnicodeConverter::Encodings[code_page];
+			NSUnicodeConverter::CUnicodeConverter oUnicodeConverter;
 
-			if (pFind != NSUnicodeConverter::mapEncodingsICU.end())
+			for (std::vector<std::wstring>::const_iterator iter = lines.begin(); iter != lines.end(); iter++)
 			{
-				const NSUnicodeConverter::EncodindId& oEncodindId = NSUnicodeConverter::Encodings[code_page];
-				NSUnicodeConverter::CUnicodeConverter oUnicodeConverter;
-
-				for (std::vector<std::wstring>::const_iterator iter = lines.begin(); iter != lines.end(); iter++)
-				{
-					result.push_back(oUnicodeConverter.fromUnicode(*iter, pFind->second.c_str()));
-				}
+				result.push_back(oUnicodeConverter.fromUnicode(*iter, oEncodindId.Name));
 			}
-			else
-			{
-				//by index ???
-				const NSUnicodeConverter::EncodindId& oEncodindId = NSUnicodeConverter::Encodings[code_page];
-				NSUnicodeConverter::CUnicodeConverter oUnicodeConverter;
-
-				for (std::vector<std::wstring>::const_iterator iter = lines.begin(); iter != lines.end(); iter++)
-				{
-					result.push_back(oUnicodeConverter.fromUnicode(*iter, oEncodindId.Name));
-				}
-			}
-
 		}
 		return result;
 	}
@@ -179,7 +162,7 @@ namespace Txt
 
 		if (file.isUtf8())
 		{
-			m_listContent = NSEncoding::transformToUnicode(file.readUtf8(), 65001);
+			m_listContent = NSEncoding::transformToUnicode(file.readUtf8(), 46); //65001 Unicode (UTF-8)
 		}
 		else if (file.isUnicode())
 		{
@@ -197,7 +180,7 @@ namespace Txt
 		else
 		{
 			int nCodePage = m_nEncoding;
-			if (-1 == nCodePage) nCodePage = 65001;
+			if (-1 == nCodePage) nCodePage = 46;
 			else if (1000 == nCodePage) nCodePage = -1;
 
 			m_listContent = NSEncoding::transformToUnicode(file.readAnsiOrCodePage(), nCodePage);
@@ -209,7 +192,7 @@ namespace Txt
 	void File::write(const std::wstring& filename) const
 	{
 		TxtFile file(filename);
-		file.writeUtf8(NSEncoding::transformFromUnicode(m_listContent, 65001));
+		file.writeUtf8(NSEncoding::transformFromUnicode(m_listContent, 46));
 	}
 
 	void File::writeCodePage(const std::wstring& filename, int code_page) const
@@ -221,7 +204,7 @@ namespace Txt
 	void File::writeUtf8(const std::wstring& filename) const
 	{
 		TxtFile file(filename);
-		file.writeUtf8(NSEncoding::transformFromUnicode(m_listContent, 65001));
+		file.writeUtf8(NSEncoding::transformFromUnicode(m_listContent, 46));
 	}
 
 	void File::writeUnicode(const std::wstring& filename) const