Qlikview 11 for developers - Problem in loading simple script

[#1]

In page 430, the book tells me to load file Intervals.xlsx from the folder "..\ Qlikview Development\Airline Operations\1.Source Data\Examples".

The script turns out to be -

Elements:

LOAD ID,

     Start,

     End

FROM

[..\1.Source Data\Examples\Intervals.xlsx]

(ooxml, embedded labels, table is Intervals);

This loads correctly. But, the book replaces "table is Intervals" with "table is Elements".

I tried using elements instead of intervals and got the error - "Field not found" ID.  Is this a mistake ?

(The book also replaces all columns in the above script with "Element" which is used in an IntervalMatch() later,

but I ignore that for now.)