ARRAY
Creates an array in a cell. The items in the array can be numbers, cell references, boolean values, strings, and other arrays. #ARRAY is displayed in cells that contain arrays. Use these functions to work with arrays:
- ArrayLength: Returns the number of items in an array.
 - ArrayToString: Returns all the items in an array as a string.
 - GetArrayItem: Returns a single item from an array.
 
Functions such as GETKEY return properties of XML variables as strings. Similarly, these functions with the 'A' suffix, return properties of XML variables as arrays:
- GetKeysA
 - GetKeyValuesA
 - GetPropertiesA
 - GetPropertyValuesA
 - FindKeysA
 
Syntax
You can create an array of different types of item, such as numbers, boolean values, and strings.
 =ARRAY(item, item, "string", "string separated by a separator", item..."separator") 
Example
 =ARRAY(123,789,TRUE,FALSE,"Test","a","b","c",",") 
Example
This example references cells that contain arrays:
 =ARRAY(C23,C25,C27,C29) 
Use, for example, ARRAYTOSTRING to return the values of the referenced arrays as a string.