In order to specify what types of media can be uploaded to your site, you will need to set the allowed file extensions.

To begin, please go to Joomla back-end via this url: "your_site/administrator" (e.g: http://vinaora.com/joomla/administrator/)

• Click Site. Then Global Configuration. Go to the System settings
• Scroll down
• Next to Legal Extensions, enter the file types you want to allow and separate each with a comma
• You can also change the maximum file size and paths to media and image folders
• If you would like to allow any users to be able to upload files, click No next to Restrict Uploads
• Scroll up. Click [Save]
• That's it! You now know how to specify what file extensions can be uploaded in Joomla

See Tutorial Video with VOICE (step by step):

How to specify what media can be uploaded in Joomla 1.5

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