| Subject | English | Japanese |
| comp., MS | file type | ファイルの種類 (The format of a file, commonly indicated by its file name extension. The file type indicates which program the file was created in and can be opened with) |
| comp., MS | registered file type | 登録されているファイルの種類 (File types that are tracked by the system registry and are recognized by the programs you have installed on your computer) |