following instructions copied from microsoft excel giving result as #value
when applied. Please help me.
Create a total based on multiple conditions
Use the following formula to calculate the total value of cells F5:F25,
where B5:B25 contains "Northwind" and the range C5:C25 contains the region
name "Western".

=SUM(IF((B5:B25="Northwind")*(C5:C25="Western"),F5 :F25))

To calculate the total value of cells F5:F25, where B5:B25 contains either
"Northwind" or "Terra Firm", use the following formula.

=SUM(IF((B5:B25="Northwind")+(B5:B25="Terra Firm"),F5:F25))

Both of these formulas are array formulas and must be entered by pressing
CTRL+SHIFT+ENTER. Learn about array formulas.