Hi Ishag, welcome to the forum!
What version of Sibelius are you using?
Please attach a screen shot of the complete path to where you placed the XML file. (See also Installing A Sound Set.)
Here's what mine looks like in the image attachment on this post: https://forum.thewritescore.com/index.php?topic=639.msg2842#msg2842
What version of Sibelius are you using?
Please attach a screen shot of the complete path to where you placed the XML file. (See also Installing A Sound Set.)
Here's what mine looks like in the image attachment on this post: https://forum.thewritescore.com/index.php?topic=639.msg2842#msg2842