Replicate Locked Spreadsheet Manually

I have a password-protected spreadsheet that won’t allow copy-paste, yet I still need every cell reproduced in an editable file. The source holds well over 500 rows with a mix of text entries and numerical figures... (Budget: $250 - $750 AUD, Jobs: Data Analysis, Data Entry, Data Management, Data Processing, Excel, Google Sheets, Powerpoint, Typing)