diff --git a/src/main.rs b/src/main.rs
index fa372d2..a5b23d5 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,10 +11,15 @@ fn main() {
 
     let filepath = &args[1];
     println!("Filepath: {filepath:?}");
-    let prsr = parser::NumberParser{filepath: *filepath};
+    let prsr = parser::NumberParser{filepath: filepath.clone()};
 
-    let numbers = prsr.file_dump();
-    prsr.print_values(&numbers);
-
-    prsr.save_file(numbers);
+    match prsr.file_dump() {
+        Ok(numbers) => {
+            prsr.print_values(&numbers);
+            prsr.save_file(numbers);
+        }
+        Err(err) => {
+            eprintln!("Error: {err:?}");
+        }
+    };
 }
diff --git a/src/parser/mod.rs b/src/parser/mod.rs
index 0e06196..5a6722d 100644
--- a/src/parser/mod.rs
+++ b/src/parser/mod.rs
@@ -1,3 +1,4 @@
+use std::io::{BufRead, BufReader};
 
 pub const LETTERS: &str = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
 
@@ -7,13 +8,25 @@ pub struct NumberParser {
 }
 
 impl NumberParser {
-    pub fn file_dump(&self) -> Vec<textsender_models::contact::Contact> {
+    pub fn file_dump(&self) -> Result<Vec<textsender_models::contact::Contact>, std::io::Error> {
         println!("Dumping files");
         let mut objs: Vec<textsender_models::contact::Contact> = Vec::new();
 
-        for line in self.read_lines(&self.filepath) {
+        match self.read_lines(&self.filepath) {
+            Ok(lines) => {
+                for line in lines {
+                    let contains_letters = line.chars().any(|c| LETTERS.contains(c));
+                    if contains_letters {
+                        continue;
+                    }
+                }
+
+                Ok(objs)
+            }
+            Err(err) => {
+                Err(err)
+            }
         }
-        Vec::new()
     }
 
     pub fn save_file(&self, numbers: Vec<textsender_models::contact::Contact>) {
@@ -29,6 +42,18 @@ impl NumberParser {
         println!("Total numbers: {:?}", numbers.len());
     }
 
+    fn read_lines(&self, filename: &String) -> Result<Vec<String>, std::io::Error> {
+        match std::fs::File::open(filename) {
+            Ok(file) => {
+                let reader = std::io::BufReader::new(file);
+                reader.lines().collect()
+            }
+            Err(err) => {
+                Err(err)
+            }
+        }
+    }
+
     fn remove_dups(&self, contacts: &Vec<textsender_models::contact::Contact>) -> Vec<textsender_models::contact::Contact> {
         let mut unique_contacts: Vec<textsender_models::contact::Contact> = Vec::new();
         let mut unique_items = std::collections::HashSet::new();
@@ -162,31 +187,4 @@ func (prsr NumberParser) SaveFile(vals []contact.Contact) {
 		return
 	}
 }
-
-func (prsr NumberParser) readLines(filename string) []string {
-	// Open the file
-	file, err := os.Open(filename)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer file.Close()
-
-	// Create a scanner to read the file line by line
-	scanner := bufio.NewScanner(file)
-	lines := []string{}
-
-	// Read line by line
-	for scanner.Scan() {
-		line := scanner.Text()
-		lines = append(lines, line)
-	}
-
-	// Check for any errors during scanning
-	if err := scanner.Err(); err != nil {
-		log.Fatal(err)
-	}
-
-	return lines
-}
 */
-