import zipfile
import os

def extract_zip(zip_file, extract_to):
    with zipfile.ZipFile(zip_file, 'r') as zip_ref:
        zip_ref.extractall(extract_to)

def read_texts_from_folder(folder_path):
    texts = []
    for root, _, files in os.walk(folder_path):
        for file in files:
            if file.endswith(".txt"):
                with open(os.path.join(root, file), 'r', encoding='utf-8') as f:
                    texts.append(f.read())
    return texts