XG4 file extension is for Database Index
Similar to XG4
A3K - Yamaha A3000 Sampler FileA3L - Authorware Version 3.x Library
A41 - Authorware Version 4.x Library
A4L - Authorware Version 4.x Library
A4P - Authorware File Without Runtime
A5W - Unpackaged Authorware Windows File
A60 - Roland Garros Tennis MVTS File
View all in File Extensions