I have done quite a lot of diggings, but all I found were examples and
instructions about opening/reading simple xls files.
I need to open and read data from encrypted excel spreadsheets. Does
anyone know how to do that?
cheers 
--
Posted via http://www.ruby-forum.com/.
From Microsoft's web site:
"Caution If a user assigns password protection to a
workbook and then forgets the password, it is
impossible to perform the following activities:
* Open the workbook.
* Gain access to the workbook's data from another
workbook through a link.
* Remove protection from the workbook.
* Recover data from the workbook."
I believe you need a password cracking utility, or you
need to make use of a password cracking service
(http://www.passwordbusters.com). Recent MSOffice
versions apparently use 40-bit RC4 encryption.
You can write your own common-password cracking
utility. If you're adventurous and have a
supercomputer handy, you can write a brute force
decryption utility. Maybe, someday that will be a
ruby quiz ... no way to test, though 
--- lovelymmx <lovelymmx@gmail.com> wrote:
I have done quite a lot of diggings, but all I found
were examples and
instructions about opening/reading simple xls files.I need to open and read data from encrypted excel
spreadsheets. Does
anyone know how to do that?
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Todd Benson wrote:
I believe you need a password cracking utility, or you
need to make use of a password cracking service
(http://www.passwordbusters.com). Recent MSOffice
versions apparently use 40-bit RC4 encryption.You can write your own common-password cracking
utility. If you're adventurous and have a
supercomputer handy, you can write a brute force
decryption utility. Maybe, someday that will be a
ruby quiz ... no way to test, though
thanks, but what i need is not a password cracker.
I have already found some useful reference on msdn.
password could be passed as a parameter into the Workbooks.Open method
--
Posted via http://www.ruby-forum.com/\.
thanks, but what i need is not a password cracker.
I have already found some useful reference on msdn.
password could be passed as a parameter into the
Workbooks.Open method
Yeah, I misunderstood you. My reading comprehension
skills have gone downhill recently.
--- Guanliang Liu <lovelymmx@gmail.com> wrote:
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