diff --git a/archiveteam_project_url_extractor.py b/archiveteam_project_url_extractor.py
index 088b844..954854a 100644
--- a/archiveteam_project_url_extractor.py
+++ b/archiveteam_project_url_extractor.py
@@ -11,6 +11,8 @@ def process_file(file, directory_path, output_directory, patterns, counter_lock,
     # Determine the appropriate command based on file extension
     if file.endswith(".gz"):
         command = f"zcat {file_path}"
+    elif file.endswith(".zst"):
+        command = f"zstdcat {file_path}"
     elif file.endswith(".txt"):
         command = f"cat {file_path}"
     else:
@@ -38,20 +40,20 @@ def process_file(file, directory_path, output_directory, patterns, counter_lock,
         remaining_count = len(gzipped_files) - processed_counter[0]
         print(f"{file_path} processed. Remaining files: {remaining_count}")
 
-# Ask the user for the directory containing .txt and .txt.gz files
-directory_path = input("Enter the directory path containing .txt and .txt.gz files: ")
+# Ask the user for the directory containing .txt, .txt.gz, and .zst files
+directory_path = input("Enter the directory path containing .txt, .txt.gz, and .zst files: ")
 
 # Ensure the directory exists
 if not os.path.exists(directory_path):
     print(f"Error: The directory '{directory_path}' does not exist.")
     exit()
 
-# List all files in the directory that end with .txt or .txt.gz
-gzipped_files = [file for file in os.listdir(directory_path) if file.endswith(".txt") or file.endswith(".txt.gz")]
+# List all files in the directory that end with .txt, .txt.gz, or .zst
+gzipped_files = [file for file in os.listdir(directory_path) if file.endswith((".txt", ".txt.gz", ".zst"))]
 
-# Check if there are any .txt or .txt.gz files in the directory
+# Check if there are any .txt, .txt.gz, or .zst files in the directory
 if not gzipped_files:
-    print("Error: No .txt or .txt.gz files found in the specified directory.")
+    print("Error: No .txt, .txt.gz, or .zst files found in the specified directory.")
     exit()
 
 # Ask the user for the output directory