file = r'resources\views\products\index.blade.php'
with open(file, 'r', encoding='utf-8') as f:
    c = f.read()

c = c.replace('<th width="50">#</th>', '<th width="50">No.</th>')

with open(file, 'w', encoding='utf-8') as f:
    f.write(c)
print("OK!")