Notes about the GXS file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The GXS file type is primarily associated with 'GrafiXML' by Universite Catholique de Louvain-la-Neuve. GrafiXML is a graphical tool to draw user interfaces. You can save those UI in several formats like Java or XHTML but the principal way is to save it in usiXML, an XML user interface description.