.sib是人什么文件？用什么打开？

Extension: SIB
Program and/or Extension Function [What's This?] Company [What's This?]
Sibelius Music/Score File Sibelius Software Ltd
Specific Notes [What's This?]
(None)
MIME Type [What's This?] File Classification [What's This?] Associated Links [What's This?]
application/x-sibelius-score None

Identifying Characters [What's This?]
(None or Unknown)
Program ID [What's This?]
(None or Unknown)
General Notes [What's This?]
(None)

Sibelius.Scorch %ProgramFiles%\INTERN~1\iexplore.exe %1
ShipInBottle.Archive F:\t\tt\ShipInBottle 1.0 beta 16\ShipInBottle.exe %1
Sibelius.Score %ProgramFiles%\Sibelius Software\Sibelius 2\Sibelius.exe %1
Sibelius.Scorch %ProgramFiles%\Internet Explorer\iexplore.exe %1
Sibelius.Score %ProgramFiles%\SIBELI~1\SIBELI~1\Sibelius.exe %1