Trim-- cleared a space on both sides of the string
But it does not remove the space between the characters.
concatenate-- copula
Syntax: = Concatenate (cell 1, cell 2 ......)
incorporated in the cell, there is another way merge &, excessive contents need to merge, CONCATENATE efficiency faster.
Replace-- replacement string out of the cell
= Replace (specified string, starting position, the number of replacement, replace what)
Substitute- the string with a new string replacement string portion
= substitute (text needs to be replaced, the old characters, new characters, new characters will replace the old character first appeared several times)
The last parameter can be omitted, it represents replace all the old characters with new characters.
