diff --git a/src/Main.java b/src/Main.java
index e5571ea..b23f75c 100644
--- a/src/Main.java
+++ b/src/Main.java
@@ -8,32 +8,15 @@ public class Main {
     public static void main(String[] args) {
         Scanner s = new Scanner(System.in);
 
+        // reads data from file and puts into data structures
         System.out.print("Enter the CSV filename: ");
         String f = s.nextLine();
 
-        List<Map<String, String>> dta = new ArrayList<>();
-        try (Scanner fs = new Scanner(new File(f))) {
-            fs.nextLine();
-
-            while (fs.hasNextLine()) {
-                String[] v = fs.nextLine().split(",");
-
-                int chg = Integer.parseInt(v[2]);  
-
-                Map<String, String> mp1 = new HashMap<>();
-                mp1.put("id", v[0]);  
-                mp1.put("tm", v[1]);  
-                mp1.put("chg", String.valueOf(chg));
-                dta.add(mp1);
-            }
-        } catch (FileNotFoundException e) {
-            System.out.println("Error reading the file: " + e.getMessage());
-            s.close();
-            return;
-        }
+        List<Map<String, String>> forkDirectory = parseCSV(f);
+       
 
         Map<String, List<Map<String, String>>> mp2 = new HashMap<>();
-        for (Map<String, String> d : dta) {
+        for (Map<String, String> d : forkDirectory) {
             String id = d.get("id");
             List<Map<String, String>> lst = mp2.get(id);
             if (lst == null) {
@@ -44,13 +27,14 @@ public static void main(String[] args) {
         }
         int cnt = mp2.size();
 
+        // number of forks in the data and select which fork to view
         System.out.println("There are " + cnt + " forks available (fork1 to fork" + cnt + ").");
         System.out.print("Enter the fork number to analyze (or 'all' for all forks): ");
         String inp = s.nextLine();
 
         List<Map<String, String>> sel;
         if (inp.equalsIgnoreCase("all")) {
-            sel = dta;
+            sel = forkDirectory;
         } else {
             String id = "fork" + inp; 
             sel = mp2.get(id);
@@ -58,6 +42,7 @@ public static void main(String[] args) {
 
         int sz = sel.size();
 
+        // formats date
         DateTimeFormatter f1 = DateTimeFormatter.ISO_DATE_TIME;
         LocalDateTime lat = null;
         for (Map<String, String> d : sel) {
@@ -78,6 +63,7 @@ public static void main(String[] args) {
         }
         double avg = tot / sz;
 
+        // for max and min lines of code changed in a commit
         int mx = Integer.MIN_VALUE;
         int mn = Integer.MAX_VALUE;
         for (Map<String, String> d : sel) {
@@ -90,6 +76,7 @@ public static void main(String[] args) {
             }
         }
 
+        // display results
         System.out.println("\nStatistics:");
         System.out.println("Number of commits: " + sz);
         System.out.println("Most recent commit timestamp: " + latT);
@@ -100,4 +87,27 @@ public static void main(String[] args) {
 
         s.close();
     }
+
+    public static List<Map<String, String>> parseCSV(String filename) {
+        List<Map<String, String>> forkDirectory = new ArrayList<>();
+        try (Scanner fs = new Scanner(new File(filename))) {
+            fs.nextLine();
+
+            while (fs.hasNextLine()) {
+                String[] v = fs.nextLine().split(",");
+
+                int chg = Integer.parseInt(v[2]);  
+
+                Map<String, String> initialToken = new HashMap<>();
+                initialToken.put("id", v[0]);  
+                initialToken.put("tm", v[1]);  
+                initialToken.put("chg", String.valueOf(chg));
+
+                forkDirectory.add(initialToken);
+            }
+        } catch (FileNotFoundException e) {
+            System.out.println("Error reading the file: " + e.getMessage());
+        }
+        return forkDirectory;
+    }
 }