diff --git a/FileSystem/CPKDataFormat/sample_data.cpk b/FileSystem/CPKDataFormat/sample_data.cpk
new file mode 100644
index 0000000..a73390d
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diff --git a/FileSystem/CPKDataFormat/sample_data.cpk.txt b/FileSystem/CPKDataFormat/sample_data.cpk.txt
new file mode 100644
index 0000000..eab5f2e
--- /dev/null
+++ b/FileSystem/CPKDataFormat/sample_data.cpk.txt
@@ -0,0 +1,19 @@
+CPK Filename：sample_data.cpk
+File format version：Ver.7, Rev.14
+Data alignment：512
+Content files：5
+Compressed files：4
+Content file size：203,032
+Compressed file size：144,256 (71.05%)
+Enable Filename info.：True   (376 + 0 bytes) [Sorted]
+Enable ID info.：False 
+Enable Group info.：False 
+Enable GInfo Table：False 
+Enable CRC32 info.：False 
+Enable CheckSum64 info.：False 
+Compression Mode：Layla Standard Compression
+Work size to bind CPK：5,301 bytes
+Tool version：CPKMG2.40.13, DLL3.24.00
+
+
+Elapsed Time : 0:00:01
\ No newline at end of file
diff --git a/FileSystem/CPKDataFormat/sample_data_uncompressed_masked.cpk b/FileSystem/CPKDataFormat/sample_data_uncompressed_masked.cpk
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index 0000000..8ddeb89
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diff --git a/FileSystem/CPKDataFormat/sample_data_uncompressed_unmasked.cpk b/FileSystem/CPKDataFormat/sample_data_uncompressed_unmasked.cpk
new file mode 100644
index 0000000..af259a1
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diff --git a/FileSystem/CPKDataFormat/sample_data_uncompressed_unmasked_idfn.cpk b/FileSystem/CPKDataFormat/sample_data_uncompressed_unmasked_idfn.cpk
new file mode 100644
index 0000000..43082c3
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diff --git a/FileSystem/CPKDataFormat/sample_data_uncompressed_unmasked_idfn_header.h b/FileSystem/CPKDataFormat/sample_data_uncompressed_unmasked_idfn_header.h
new file mode 100644
index 0000000..bf9a984
--- /dev/null
+++ b/FileSystem/CPKDataFormat/sample_data_uncompressed_unmasked_idfn_header.h
@@ -0,0 +1,75 @@
+/*===========================================================================*
+ *	Contents file Information header
+ *	CPK Filename  : C:\Users\Mike Becker\Desktop\CRITools\samples\MakeCpk_xls\sample_data_uncompressed_unmasked_idfn_header.cpk
+ *	    File Size : 208,648 bytes
+ *	    Date Time : 6/12/2024 9:42 PM
+ *	    File Mode : ID Only
+ *===========================================================================*/
+
+#ifndef CPK_DISABLE_COMMON_DEFINITION /////////////////////////////////////////
+
+/* Information size of the CPK file */
+#ifndef CPK_ITOC_INFO_SIZE
+#define CPK_ITOC_INFO_SIZE	         	(136)
+#endif
+#ifndef CPK_TOTAL_INFO_SIZE
+#define CPK_TOTAL_INFO_SIZE	        	(136)
+#endif
+#ifndef CPK_TOTAL_INFO_SIZE_ALIGNED
+#define CPK_TOTAL_INFO_SIZE_ALIGNED		(512)
+#endif
+
+/* Information size of the CPK file (Unique) */
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_CPK_ITOC_INFO_SIZE	         	(136)
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_CPK_TOTAL_INFO_SIZE	        	(136)
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_CPK_TOTAL_INFO_SIZE_ALIGNED		(512)
+
+/* CPK file information */
+#ifndef CPK_FILENAME
+#define CPK_FILENAME	  	"sample_data_uncompressed_unmasked_idfn_header.cpk"
+#endif
+
+/* Number of contents */
+#ifndef NUM_CONTENS
+#define NUM_CONTENS	    	(5)
+#endif
+
+/* CPK file information (Unique) */
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_CPK_FILENAME	  	"sample_data_uncompressed_unmasked_idfn_header.cpk"
+
+/* Number of contents (Unique) */
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_NUM_CONTENS	    	(5)
+
+/* Content ID definitions */
+#define FOLDER1_DATA1_BMP      (0) // folder1/data1.bmp
+#define FOLDER1_DATA2_BMP      (1) // folder1/data2.bmp
+#define FOLDER2_DATA3_BMP      (2) // folder2/data3.bmp
+#define FOLDER2_DATA4_BMP      (3) // folder2/data4.bmp
+#define FOLDER2_VOICE1_AHX     (4) // folder2/voice1.ahx
+
+#endif // end of CPK_DISABLE_COMMON_DEFINITION
+
+
+#ifndef CPK_DISABLE_UNIQUE_DEFINITION /////////////////////////////////////////
+
+/* CPK file information */
+#ifndef SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_CPK_FILENAME
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_CPK_FILENAME	  	"sample_data_uncompressed_unmasked_idfn_header.cpk"
+#endif
+
+/* Number of contents */
+#ifndef SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_NUM_CONTENS
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_NUM_CONTENS	    	(5)
+#endif
+
+/* Content ID definitions */
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_FOLDER1_DATA1_BMP (0) // folder1/data1.bmp
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_FOLDER1_DATA2_BMP (1) // folder1/data2.bmp
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_FOLDER2_DATA3_BMP (2) // folder2/data3.bmp
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_FOLDER2_DATA4_BMP (3) // folder2/data4.bmp
+#define SAMPLE_DATA_UNCOMPRESSED_UNMASKED_IDFN_HEADER_FOLDER2_VOICE1_AHX (4) // folder2/voice1.ahx
+
+#endif // end of CPK_DISABLE_UNIQUE_DEFINITION
+
+
+/* end of file */