| Subject | English | Spanish |
| comp., MS | File Open Picker contract | contrato del Selector de archivos para abrir (A contract that enables developers to create apps that use the file picker to offer files to other apps) |
| commun. | open batch file | fichero de lotes abierto |
| dat.proc. | open file | fichero abierto |
| dat.proc. | open file | fichero en uso |
| dat.proc. | open file | fichero activo |
| comp., MS | Open Received Files | Abrir archivos recibidos (An item on the File menu that opens files that the user has received via Communicator conversations) |
| comp., MS | Open Software Descriptor file | archivo 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) |