On the internet, there are many tools to unlock complex password characters in Excel files, but I used only eSoftTools Excel password recovery software, because this tool has effortless methods and features to recover hard-combination password characters (mathematics, alphabetical, numeric, and symbols), and it can also easily recover any long and short password characters, English and non-English characters, and more. It provides a free trial version to find three password characters as a hint. To know more full password digits, you can buy this tool at the lowest price.