iSumsoft Excel Password Refixer is the best and easiest to use Excel password recovery software. It works for all versions of Microsoft Excel including Excel 2016/2013/2010/2007/2003/2000, etc., and supports both .xls and .xlsx. To use it to recover Excel file password, here are the simple steps. Step 1: Install the software on your Windows-based computer, and then launch it. Step 2: Add the target Excel file path to the software by the 'Open' button. Step 3: Select one attack type and choose relevant properties. Step 4: Click 'Start' to start Excel password recovery. Step 5: Wait until the password is recovered and displayed on the screen. Step 6: Copy and paste the password to open your password protected Excel workbook.