Text cleaning function
FIND()
LEFT()
RIGHT()
MID()
CONCATENATE()
REPLACE()
SUBSTITUTE()
TEXT()
TRIM()
LEN ()
Correlation matching function
LOOKUP()
VLOOKUP()
INDEX()
MATCH()
ROW()
COLUMN()
OFFSET()
HYPERLINK()
Logical operation function
AND()
OR()
IF()
IS()
NOT()
FALSE
TRUE
Calculate statistical functions
SUM()
SUMPRODUCT()
COUNT()
MAX()
MIN ()
RANK()
RAND()
RANDBETWEEN ()
AVERAGEA()
QUARTILE()
STDEV()
SUBSTOTAL()
INT()
ROUND()
Time series function
YEAR()
MONTH()
WEEKDAY()
WEEKNUM ()
DAY()
DATE()
NOW()
TODAY()