SOME TEXT FILES AND DATA FILES

.doc - Microsoft word document

.docx - Microsoft word Open XML document

.log - Log File

.msg - Outlook Mail Message

.odt - Open Document text
.pages - Pages document
.rtf - Rich Text Format File
ODC - Office Data Connection file
ODS - OpenDocument Spreadsheet file.
ODT - OpenDocument Text Document file.
OLL - TrialDirector Object Load List file.
OLN - Visual C++ Outline Examples file.
.wpd - Word Perfect Document
.wps - Microsoft works word processor document
.csv - command separated values file
.dat - data file
.pptx - Powerpoint open XML presentation
.sdf - standard data file
.xml - XML file