col

Type:

Number

index of the column to insert into (column number starting from 0). If you want to specify the header section, specify the index in negative order starting from -1.

If the index is greater than or equal to 0, the column is inserted before the column at the specified index. If the index is less than or equal to -1, the column is inserted after the column at the specified index.

num

Type:

Number

The number of columns to insert.

data

Type:

array

Additional data.

Type:

Boolean

FALSE - Failure. TRUE - Success.