SUM : Adds all the numbers in a range of cells.
AVERAGE : Calculates the average of numbers in a range of cells.
MAX : Returns the largest value from a range of cells.
MIN : Returns the smallest value from a range of cells.
COUNT: Counts the number of cells that contain numbers.
IF : Checks whether a condition is met and returns one value if true and another value if false.
VLOOKUP : Searches for a value in the first column of a table and returns value in the same row from another column.
INDEX : Returns the value of a cell in a specified row and column of a range.
MATCH : Searches for a specified value in a range and returns the relative position of that item.
CONCATENATE : Joins several text strings into one text string.
LEFT : Returns the leftmost characters from a text string.
RIGHT : Returns the rightmost characters from a text string.
LEN : Returns the number of characters in a text string.
UPPER : Converts text to uppercase.
LOWER : Converts text to lowercase.
AND : Returns true if all arguments are true.
OR : Returns true if any argument is true.
TODAY : Returns the current date.
NOW : Returns the current date and time.
DATE : Returns the serial number of a particular date.
YEAR : Returns the year from a date.
MONTH : Returns the month from a date.
DAY : Returns the day of the month from a date.
LINE GRAPH - Line charts can display continuous data over time, set against a common scale, and are therefore ideal for showing trends in data at equal intervals or over time .
PIE CHART - Pie charts can be used to show percentages of a whole, and represents percentages at a set point in time. Unlike bar graphs and line graphs, pie charts do not show changes over time. The following pages describe the different parts of a pie chart.
BAR GRAPH - A bar chart or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent.
SCATTER GRAPH - Scatter plots are the graphs that present the relationship between two variables in a data-set. It represents data points on a two-dimensional plane or on a Cartesian system.