Extension of some files

Extension of some files:

# notepad : .txt
# wordpad : .rtf
# ms word : .doc or .docx (new)
# ms power point : .ppt or .pptx (new)
# ms excel : .xls or .xlsx (new)
# ms access : .mdb or .accdb (new)
# ms paint : .bmp
# C Language file : .c
# c++ file : .cpp
# c# (c sharp)  : .cs
# java file : .java
# HTML file : .html or .htm
# php file : .php
# open office org : odt
# asp file : .asp
# jsp file : .jsp
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