设置: establish; set up; put up bu ...文件: document; file; papers; inst ...扩展: expand; extend; spread; deve ...名: time; times; days文件扩展名: extension name; filename extension; midibat文件扩展名: bat file extension常用文件扩展名集: common file extensions文件扩展名关联: file extension associations对这些文件扩展名使用: use this mime as the outgoing default for these file extensions对这种文件扩展名使用: use this mime as the outgoing default for this file extension税款交换格式文件扩展名: txf给文件扩展名关联打开文件: associate a file with a file extension显示或修改文件扩展名关联。: assoc文件扩展: file extensions设置文件: profiling; settings files在扩展名设置: extensions显示或修改用在文件扩展名关联的文件类型。: ftype初始化文件: initialization files设置文件属性: setfileattr文档设置文件: document profile波形文件的扩展名: wav带扩展名的文件: file with extension命令文件(的后缀,扩展名): command file位图文件的扩展名: bmp文件扩展控制块: file-extended control block