Understanding VLOOKUP and HLOOKUP in Excel
Excel itself provides excellent help on this. VLOOKUP and HLOOKUP are essentially ways to reference a value from a table. This reference can be used to manipulate the lookup value instead of copying and pasting it in multiple places, allowing the single source to be referenced in other sheets easily.
It is also very useful to find out if data exists in the reference table. For example, if you want to determine if the revised salary is updated for all employees in the increment sheet, you can easily do it through VLOOKUP. If the value is not found, you'll see "N/A" in the lookup value.
HLOOKUP is also very useful; it performs a search across columns instead of rows.
Please refer to the attached XLS for an example of VLOOKUP.
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