|
ExcelLock helps you to
scramble the
information in a spreadsheet
so nobody can read it. In this topic we will
demonstrate how easy it is to view information
in an ordinary spreadsheet.
Even
applying a
password will not help. You need to scramble the contents of the file and you can use
ExcelLock to do it.
Information in an ordinary Excel spreadsheet can
be viewed by anyone. Even when a password is set on the file
you can view the file in notepad and read the information that
is stored in it. To quickly demonstrate this the spreadsheet
below was prepared. It contains the text: This is a secret
message.
This spreadsheet can be
very easily viewed in a text editor bypassing Excel's security
completely. For example when it is viewed in notepad you
can just see the text in between the binary data making up the
xls spreadsheet file. Look closely and you also discover that
you can see the names of the worksheets (Sheet1, Sheet2 and
Sheet3). It gives away quite a lot of information and perhaps
you don't want others to
know.
Therefore when sending important and classified
information Excel should not be used without using a
scrambler. Strong encryption needs to be applied and the file
needs to be secured using a strong password. ExcelLock can
provide both.

After securing the Excel file with strong
encryption and with a password the text cannot be found
anymore. In the screen print below it is demonstrated
that although the file can stil be viewed with a text
editor, the contents are not visible anymore. Everything is
scrambled. You cannot find the text information anymore and
other spreadsheet characteristics are scrambled as well.
|