| Subject | English | Portuguese |
| comp., MS, Braz. | File Open Picker contract | contrato do Seletor de Abertura de Arquivos (A contract that enables developers to create apps that use the file picker to offer files to other apps) |
| comp., MS | File Open Picker contract | contrato de Seletor de Abertura de Ficheiros (A contract that enables developers to create apps that use the file picker to offer files to other apps) |
| commun. | open batch file | arquivo de grupo aberto |
| comp., MS, Braz. | Open Received Files | Abrir Arquivos Recebidos (An item on the File menu that opens files that the user has received via Communicator conversations) |
| comp., MS | Open Received Files | Abrir Ficheiros Recebidos (An item on the File menu that opens files that the user has received via Communicator conversations) |
| comp., MS, Braz. | Open Software Descriptor file | arquivo OSD (An XML-based file that instructs the client on how to retrieve the sequenced application from the Application Virtualization Management/Streaming Server and how to run the sequenced application in its virtual environment) |