.sdc
文件类型1：Stardock Central Download Archive
文件说明：
Archive of files downloaded with Stardock Central, an enhanced download manager for Stardock software programs; contains installers that have been previously downloaded.Stardock SDC files are created as backup files and are saved in the Program FilesStardockStardock CentralBACKUP directory by default; they can be used to reinstall program updates or to move previous installations to another system.
打开.sdc文件
Mac OS
Windows
Stardock CentralLinux
其它内容
.sdc
文件类型2：Secure Download Cabinet
文件说明：
Compressed and encrypted archive used for installing MSDNAA (Microsoft Developer Network Academic Alliance) software; often distributed through ELMS (the E-academy License Management System), a system for distributing software packages to academic institutions.NOTE:
Secure Download Cabinet files should open automatically with UnpackSDC (unpacksdc.exe) when downloaded; this will extract and install the contents and will delete the SDC file when completed; therefore, if the SDC file is still on your hard disk after the product has downloaded, you may need to delete the SDC file and try the process again.打开.sdc文件
Mac OS
Windows
Microsoft UnpackSDCLinux
.sdc
文件类型3：OpenOffice.org Calc Spreadsheet
文件说明：
Spreadsheet created with the Calc spreadsheet program included with OpenOffice.org and StarOffice; includes flexible cell formatting options, such as freely rotating contents, backgrounds, borders, and templates.SDC files can be exported in the Microsoft Excel (.XLS) or Portable Document (.PDF) formats from within Calc.
打开.sdc文件
Mac OS
OpenOffice.org
Windows
OpenOffice.orgSun Microsystems StarOffice
Linux
OpenOffice.orgSun Microsystems StarOffice
来源：. sdc文件