Popular Document file extension list:
.wps - Microsoft Works document
.pub - Microsoft Publisher document
.odt - OpenOffice.org Writer text document
.xls - Microsoft Office Excel spreadsheet
.docx - Microsoft Word 2007 XML based document file format
.ods - OpenOffice.org Calc Spreadsheet file
.pps - Microsoft PowerPoint slideshow
.wpd - Corel WordPerfect document
file extension VHD - "Very High-level Design Language" hardware design document
File extension VHD description:
Probably old file extension or not supported application..vhd
