diff --git a/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java b/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
index 10ec11ef2..fc2e38196 100644
--- a/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
+++ b/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
@@ -730,6 +730,15 @@ public class FessLabels extends UserMessages {
 
     /** The key of the message: iBooks */
     public static final String LABELS_facet_filetype_ibooks = "{labels.facet_filetype_ibooks}";
+	
+	/** The key of the message: Plain text */
+	public static final String LABELS_facet_filetype_txt = "{labels.facet_filetype_txt}";
+
+	/** The key of the message: Rich Text Format */
+	public static final String LABELS_facet_filetype_rtf = "{labels.facet_filetype_rtf}";
+  	
+	/** The key of the message: Help Format */
+	public static final String LABELS_facet_filetype_chm = "{labels.facet_filetype_chm}";
 
     /** The key of the message: Others */
     public static final String LABELS_facet_filetype_others = "{labels.facet_filetype_others}";
diff --git a/src/main/resources/app.xml b/src/main/resources/app.xml
index c4fe84167..db2d5c5ba 100644
--- a/src/main/resources/app.xml
+++ b/src/main/resources/app.xml
@@ -60,6 +60,9 @@
 					"filetype:fb2",
 					"filetype:epub",
 					"filetype:ibooks",
+					"filetype:txt",
+					"filetype:rtf",
+					"filetype:chm",
 					"filetype:others"
 				]</property>
 			</component>
@@ -170,6 +173,18 @@
 						<arg>"labels.facet_filetype_ibooks"</arg>
 						<arg>"filetype:ibooks"</arg>
 					</postConstruct>
+					<postConstruct name="addQuery">
+						<arg>"labels.facet_filetype_txt"</arg>
+						<arg>"filetype:txt"</arg>
+					</postConstruct>
+					<postConstruct name="addQuery">
+						<arg>"labels.facet_filetype_rtf"</arg>
+						<arg>"filetype:rtf"</arg>
+					</postConstruct>
+					<postConstruct name="addQuery">
+						<arg>"labels.facet_filetype_chm"</arg>
+						<arg>"filetype:chm"</arg>
+					</postConstruct>
 					<postConstruct name="addQuery">
 						<arg>"labels.facet_filetype_others"</arg>
 						<arg>"filetype:others"</arg>
diff --git a/src/main/resources/fess_label.properties b/src/main/resources/fess_label.properties
index 07cd76cce..f9be671ea 100644
--- a/src/main/resources/fess_label.properties
+++ b/src/main/resources/fess_label.properties
@@ -234,6 +234,9 @@ labels.facet_filetype_pdf=PDF
 labels.facet_filetype_fb2=FictionBook
 labels.facet_filetype_epub=EPUB
 labels.facet_filetype_ibooks=iBooks
+labels.facet_filetype_txt=Plain text
+labels.facet_filetype_rtf=Rich Text Format
+labels.facet_filetype_chm=Help Format
 labels.facet_filetype_others=Others
 labels.facet_label_reset=Reset
 labels.searchoptions_all=All
diff --git a/src/main/resources/fess_label_en.properties b/src/main/resources/fess_label_en.properties
index 9756fc2a2..9199fdf5a 100644
--- a/src/main/resources/fess_label_en.properties
+++ b/src/main/resources/fess_label_en.properties
@@ -234,6 +234,9 @@ labels.facet_filetype_pdf=PDF
 labels.facet_filetype_fb2=FictionBook
 labels.facet_filetype_epub=EPUB
 labels.facet_filetype_ibooks=iBooks
+labels.facet_filetype_txt=Plain text
+labels.facet_filetype_rtf=Rich Text Format
+labels.facet_filetype_chm=Help Format
 labels.facet_filetype_others=Others
 labels.facet_label_reset=Reset
 labels.searchoptions_all=All
diff --git a/src/main/resources/fess_label_ja.properties b/src/main/resources/fess_label_ja.properties
index e8a8d74fa..fd77ba609 100644
--- a/src/main/resources/fess_label_ja.properties
+++ b/src/main/resources/fess_label_ja.properties
@@ -230,6 +230,9 @@ labels.facet_filetype_pdf=PDF
 labels.facet_filetype_fb2=FictionBook
 labels.facet_filetype_epub=EPUB
 labels.facet_filetype_ibooks=iBooks
+labels.facet_filetype_txt=Plain text
+labels.facet_filetype_rtf=Rich Text Format
+labels.facet_filetype_chm=Help Format
 labels.facet_filetype_others=\u305d\u306e\u4ed6
 labels.facet_label_reset=\u30ea\u30bb\u30c3\u30c8
 labels.searchoptions_all=\u3059\u3079\u3066
diff --git a/src/main/resources/fess_label_ko.properties b/src/main/resources/fess_label_ko.properties
index d0439b211..9cd59cf5f 100644
--- a/src/main/resources/fess_label_ko.properties
+++ b/src/main/resources/fess_label_ko.properties
@@ -217,10 +217,18 @@ labels.facet_contentLength_500kto1m = 500KB - 1MB
 labels.facet_contentLength_1m = 1MB - & nbsp;
 labels.facet_filetype_title = \ud30c\uc77c \ud615\uc2dd
 labels.facet_filetype_html = HTML
-labels.facet_filetype_word = Word
-labels.facet_filetype_excel = Excel
-labels.facet_filetype_powerpoint = PowerPoint
+labels.facet_filetype_excel=MS Excel
+labels.facet_filetype_powerpoint=MS PowerPoint
+labels.facet_filetype_odt=ODF Word
+labels.facet_filetype_ods=ODF Spreadsheet
+labels.facet_filetype_odp=ODF Presentation
 labels.facet_filetype_pdf = PDF
+labels.facet_filetype_fb2=FictionBook
+labels.facet_filetype_epub=EPUB
+labels.facet_filetype_ibooks=iBooks
+labels.facet_filetype_txt=Plain text
+labels.facet_filetype_rtf=Rich Text Format
+labels.facet_filetype_chm=Help Format
 labels.facet_filetype_others = \uae30\ud0c0
 labels.facet_label_reset = \uc7ac\uc124\uc815
 labels.searchoptions_all = \ubaa8\ub4e0
diff --git a/src/main/resources/fess_label_ru.properties b/src/main/resources/fess_label_ru.properties
index 5271d979c..92d0f060a 100644
--- a/src/main/resources/fess_label_ru.properties
+++ b/src/main/resources/fess_label_ru.properties
@@ -234,6 +234,9 @@ labels.facet_filetype_pdf=PDF
 labels.facet_filetype_fb2=FictionBook
 labels.facet_filetype_epub=EPUB
 labels.facet_filetype_ibooks=iBooks
+labels.facet_filetype_txt=Plain text
+labels.facet_filetype_rtf=Rich Text Format
+labels.facet_filetype_chm=Help Format
 labels.facet_filetype_others=Другие
 labels.facet_label_reset=Сброс
 labels.searchoptions_all=Все
diff --git a/src/main/webapp/WEB-INF/crawler/resources/app.xml b/src/main/webapp/WEB-INF/crawler/resources/app.xml
index 76fb2f4ea..6b06b53d6 100644
--- a/src/main/webapp/WEB-INF/crawler/resources/app.xml
+++ b/src/main/webapp/WEB-INF/crawler/resources/app.xml
@@ -105,6 +105,18 @@
 			<arg>"application/x-ibooks+zip"</arg>
 			<arg>"ibooks"</arg>
 		</postConstruct>
+		<postConstruct name="add">
+			<arg>"text/plain"</arg>
+			<arg>"txt"</arg>
+		</postConstruct>
+		<postConstruct name="add">
+			<arg>"application/rtf"</arg>
+			<arg>"rtf"</arg>
+		</postConstruct>
+		<postConstruct name="add">
+			<arg>"application/vnd.ms-htmlhelp"</arg>
+			<arg>"chm"</arg>
+		</postConstruct>
 	</component>
 	<component name="fessCrawler" class="org.codelibs.fess.exec.Crawler"
 		instance="prototype">