Забравена парола excel 2016 / Forgot Password in Excel 2013/2016 Workbook or Worksheet

http://www.isumsoft.com/office/forgot-password-in-excel-2013-2016-workbook-sheet.html#case3
Нека файла се казва File.xlsx и защитената страница в него е sheet3
1. Rename File.xlsx to File.zip
2. Open File.zip with 7-zip
3. Open xl\worksheets\sheet3.xml and delete all tag sheetProtection....
4. Close xml file click safe and update zip file
5. Rename File.zip to File.xlsx