You probably mean file extension.
File extension defines the type of the file.
For MS Office files it is doc, xls.
The melting point was attained.
Which of the following is a critical control point when preparing a beef curry?
The word "flight" usually indicates a specific journey, or portion thereof, from a departure point to an arrival point. The word "plane" denotes the vehicle used. But either can be used generically for a trip by air.
W
{ indicates the start point of main body. } indicates the end point of main body or program.
A decimal point indicates the point where a whole number ends and the fractional number begins.
It indicates north, approximately.
exclamation point
That is the boiling point
Between the initial point and the final point.
an arc
Chord