Managing Allowable File Types in SharePoint
SharePoint (WSS3 and MOSS 2007) blocks certain files types (by file extension) from being uploaded while allowing others. Is there a way I can manage what file types are allowed or blocked?
Yes. The configuration is kept in the SharePoint Central Administration console.
Log in the console and click on "Operations".
Under the "Security Configuration" section, click on "Blocked file types".
This form shows all blocked file types. When a user attempts to upload a file with an extension that is in the block list, the upload fails. You can modify this list according to your needs. There is one entry per line.
Using this configuration will enable you to customize and control allowable file types in the SharePoint environment.
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Article Last Updated: 2010-02-16