Hello, there!
If I'm not mistaken, workbook/worksheet protected excel file (Microsoft Office Professional Plus 2013) [as the one attatched here] asks no password if opened in a PC with the excel 2007 [but not vice-versa]. When there are several unlocked cells scattered here and there where users are supposed to enter data, "Allow users to Edit Ranges" doesn't seem so much practical.
Even wps.apk (an android application for word, presentation and spreadsheet) needs no password to edit this file.
Could you help, please?
Thank you!
N.B. Does it happen in other versions, too?
Passwords to unprotect the attatch file:
For workbook: workbook
For worksheet: sheet