The ExcelLock software uses an Unlock
Key with which the the locked file can be viewed in the
ExcelLock viewer software. It is only in this ExcelLock viewer
software that the locked Excel file can be viewed. If the
unlock key is used in Excel to open the locked file, Excel
will not allow access.
For example an unlock key looks like this:
VYX]nphDZ`\nnZWZYZ[bg]j[kmmhADklloiXinY]qgj[kj]liWWZ. It is
longer than the standard 20 character password Excel allows
and the ExcelLock viewer software can determine whether the
key is valid key or not. All this was designed so that the
file can only be viewed under the tight control of the
ExcelLock viewer software.
When sending a valuable spreadsheet you lock the
spreadsheet to produce a .lck.xls file. Your original
spreadsheet will remain unaltered. You can safely send the
.lck.xls file by email for example. If intercepted by someone
it is useless without the unlock key.
Separately you should supply the unlock key. Send
it separately from the locked Excel file.
Using the ExcelLock viewer software the recipient can view
your file. You can redistribute the ExcelLock viewer software
free of charge. It can obviously be downloaded from our site
Please note that Excel is not fully functional when your
locked file is viewed. No toolbar, menu or ribbon is shown.
Otherwise the Excel file works as normal.