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I have a big problem, in my Sharepoint site when I am trying to open Excel files in document library, it shows " access the web server by default disabled. It uses basic authentication but it does not use Secure socket layer(SSL)" error.

I'm running Basic authentication over a non-SSL connection in Sharepoint.

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thanks for your response. already i installed .msi( from, but it asking the credentials every time. my client don't want this process. Thanks, Bommula – bommula Feb 14 '13 at 5:19

Try to add the site to the Trusted Sites or Intranet Sites, via the Internet Explorer Options.

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Thanks Marius for your response , Already i tested the site by adding in Intranet sites and trusted sites via internet explorer options, but no result. i think the problem with SSL certificates. please help me if you have any idea about SSL certificates. Thanks, Bommula. – bommula Feb 14 '13 at 5:03

There is a MS KB regarding to this error :

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