File Extension SGL

  • Full name Master Document
  • Developer
Have you encountered a problem with a SGL file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a SGL file here. In the further part of this page we have added a list of programs that should open your SGL file. It is enough you choose a proper application for your operating system, download and install it.


The suffix SGL denotes a master text document of the word processor StarOffice Writer. This file contains the links to subdocuments that are in sdw format. This collection of documents with the master document SGL can be useful, for example, for large documents, such as books, which can no longer be processed as a single document.
Without the associated sdw files, a SGL file can not be used.
This format was used by older versions of StarOffice Writer. Newer variants use the OpenDocument format odm.
StarOffice was originally developed by the German company Star Division. The word processor StarWriter presented the basis of the package that first appeared for MS-DOS and subsequently for Windows. In 1999, Star Division was acquired by Sun Microsystems and ported StarOffice to various platforms. The components of the office suite have been changed several times. In 2000, the source code was published by StarOffice, from which the open source project OpenOffice.Org was created. Nevertheless, there was a commercial variant that offered additional support. From version 8 StarOffice supports the OpenDocument standard.
In 2009 Sun was bought by Oracle, who discontinued the commercial version in 2011.

Programs which can open a SGL file

How to open a SGL file? Advice and guidance

Absolutely most often appearing reason that prevents you from opening the SGL file is the lack of a proper application to support it in your operating system. It is notably the first thing you need to address. When one of the programs to support a SGL file from the list is already installed, you can try to rerun the file. The system should display a message asking you to choose a primary application to support SGL files. At this point we are looking for disk space where the application was installed in and we can link it with a SGL file. Since then, our operating system will use the selected program to support all SGL files.

Other issues

Despite the described problem with SGL there may be many more problems. If the existing operations were not effective, get involved with the following matters:

- verify that the SGL file is not damaged and that it has been downloaded or copied in whole
- verify that the file has a file extension that has not been intentionally changed (for example, if it do not contain other information than its extension suggests)
- make sure again whether the SGL file type is linked in the operating system with a proper program
- make sure that the file is not infected with a virus and you have up to date software and drivers.

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