diff --git a/buisnesslogic/src/main/java/com/plannaplan/models/FileData.java b/buisnesslogic/src/main/java/com/plannaplan/models/FileData.java
index 314e3f6..8828d21 100755
--- a/buisnesslogic/src/main/java/com/plannaplan/models/FileData.java
+++ b/buisnesslogic/src/main/java/com/plannaplan/models/FileData.java
@@ -9,30 +9,57 @@ public class FileData {
     private HashMap<String, Integer> keys;
     private Iterator<Row> rows;
 
+    /*
+     * FileData
+     *
+     * @param keys this is a hashmap of String and Integer
+     * @param rows this is a iterator of rows.
+     */
     public FileData(HashMap<String, Integer> keys, Iterator<Row> rows) {
         this.keys = keys;
         this.rows = rows;
     }
 
+    /*
+     * getRows
+     *
+     * @return rows
+     */
     public Iterator<Row> getRows() {
         return rows;
     }
 
+    /*
+     * setRows
+     * @param rows set the rows to given function
+     */
     public void setRows(Iterator<Row> rows) {
         this.rows = rows;
     }
 
+    /*
+     * getKeys
+     * @return keys
+     */
     public HashMap<String, Integer> getKeys() {
         return keys;
     }
 
+    /*
+     * setKeys
+     * @param keys set the key is being a struck of hashmap (String, Integer)
+     */
     public void setKeys(HashMap<String, Integer> keys) {
         this.keys = keys;
     }
 
+    /*
+     * getIndexOf
+     * @return index
+     */
     public int getIndexOf(String key) {
         int index = this.keys.get(key);
         return index;
     }
 
-}
\ No newline at end of file
+}