how to copy and paste from a protected excel file?
['Press Ctrl+Shift+F.', 'On the Protection tab, uncheck the Locked box, and click OK.', 'On the worksheet, select the cells you want to lock.', 'Press Ctrl+Shift+F again.', 'On the Protection tab, check the Locked box, and click OK.', 'To protect the sheet, click Review > Protect Sheet.']