.GP4ファイル拡張子
.GP4ファイルを開くには？
Guitar Pro 4 Project
| Ads | OS | Software |
|---|---|---|
| WINDOWS |
 Guitar Pro  DGuitar  MID Converter |
GTX Group IV Format CALS Picture
| OS | Software |
|---|---|
| WINDOWS |
 AutoCAD |
CCITT Group 4 Image
| OS | Software |
|---|