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How to identify a password protected excel document and provide the password dynamically?

If an excel document is encrypted with a password, XlsIO supports to raise an event to provide the password dynamically. The code snippets to provide password dynamically is given below.

C#

VB

 

The sample illustrating the behavior can be downloaded here.

 

 

 

Article ID: Published Date: Last Revised Date: Platform: Control:
4705 04/25/2015 04/25/2015 WinForms XlsIO
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Colin Hill Nov 19, 2016
I have tried this example in my WPF project (with some small adaptations) and it does not work.

It throws {"Strong encryption algorithms are not supported."} exception and does not raise the event.

I am using version 13.3.0.18.

Any advice you can give would be much appreciated.

Thank you

Colin.
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