.OPALファイル拡張子
.OPALファイルを開くには？
Microsoft Office Customization Tool (OCT) Language-specific Settings
| Ads | OS | Software |
|---|---|---|
| WINDOWS |
 Office Customization Tool  Microsoft Office |
| Ads | OS | Software |
|---|---|---|
| WINDOWS |
Office Customization Tool Microsoft Office |