ExcelLock is program that
locks down and secures your spreadsheet. The spreadsheet
becomes read-only, all formulas will be hidden and nothing can
be modified. Only the cells on the spreadsheet that you have marked can be modified. By default
all cells are read-only.
When you lock your spreadsheet
a copy of your file will be saved with the extension .lck.xls and
an unlock key will be generated. ExcelLock will apply strong encryption
so the binary .lck.xls file becomes scrambled.
The locked .lck.xls file
is password protected. It can only be opened by applying the unlock
key in the ExcelLock viewer. It is not possible to open the
file directly in Excel. This ensures that while the file can
only be viewed, no formulas can be seen or modified, no
changes can be applied to the file.
Read more... (key features)