diff --git a/src/cw/mbag_type_data.c b/src/cw/mbag_type_data.c
new file mode 100644
index 00000000..ac8a4f77
--- /dev/null
+++ b/src/cw/mbag_type_data.c
@@ -0,0 +1,43 @@
+
+#include <string.h>
+
+#include "mbag.h"
+#include "format.h"
+
+
+
+static int to_str(void *item,char *dst)
+{
+	mbag_item_t *i= item;
+	return format_hex(dst, ((uint8_t*)i->data)+1, *((uint8_t*)i->data));
+}
+
+
+static struct mbag_item *  from_str(const char *src)
+{
+
+	mbag_item_t * i = mbag_item_new(MBAG_DATA);
+	if (!i)
+		return NULL;
+
+
+	int l=strlen(src);
+	int msize=l/2;	
+	if(l&1)
+		msize++;
+	uint8_t * mem = malloc(1+msize);
+	if (!mem)
+		return NULL;
+
+	*(mem)=msize;
+	format_scan_hex_bytes(mem+1,src,l);
+	i->data=mem;
+	return i;		
+	
+}
+
+
+
+const struct mbag_typedef mbag_type_data = {
+	"Data",free,to_str,from_str
+};