Explanation

This formula uses structured referencing , a syntax that allows table parts to be referred to by name. When a table is referred to by the name only, Excel returns a reference to the data region of the table only. In this case, the entire table range is B4:F104 so Table1 returns the range B5:F105 to the COLUMNS function.

=COLUMNS(Table1)
=COLUMNS(B5:F105)

COLUMNS then returns a final result of 5, since there are 5 columns in the table.

Explanation

This formula uses structured referencing , a syntax that allows table parts to be called out by name. When a table is called with the name only, Excel returns a reference to the data region of the table only. In this case, the entire table range is B4:F104 so Table1 returns the range B5:F105 to the ROWS function.

=ROWS(Table1)
=ROWS(B5:F105)

ROWS then returns a final result of 100. Note that the header row is not included in this count.