On the Blocked File Types page do one of the following: In the Select Web Application dialog, click an app. To change the web application, click the link next to Web Application: and then click Change Web Application. If you have farm administrator permissions, you can add or remove blocked file types.Ĭlick Security, and then click Define blocked file types. Add or remove blocked files to SharePoint Server 2013 and SharePoint Server 2010 Windows Communication Foundation (WCF) service fileįilenames that include braces (for example, filename.) are blocked automatically. Web handlers are software modules that handle raw HTTP requests received by ASP.NET. To learn how to change or add file see Add or remove file types.ĪSP.NET Web handler file. These are the default blocked file types for new SharePoint Server 2016 deployments. If you find file types that aren't listed here, but are blocked, speak to your SharePoint admin or manager. Administrators can add more types of files to block. Note: These lists are the standard files that SharePoint blocks. If your admin allows custom script on a site, you need 'Add and Customize Pages' permission (part of the Design and Full Control permission levels) to run the script in the file types listed above.įor the list of file names restricted by the sync app, see Invalid file names and file types in OneDrive and SharePoint.) If you're a global admin or SharePoint admin in your organization, see Allow or prevent custom script to learn how to change the custom script settings. By default, custom script is blocked on user-created sites that have Microsoft 365 groups. The following types of files can be uploaded to SharePoint in a web browser or using the sync app, but they won't work unless the site allows you to run custom script.

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