Objectives
- Enter data; use SUM, AVERAGE, and a simple IF.
- Format currency and freeze the header row.
Theory: Application software.
Tasks (55 minutes)
In a workbook named Surname_IT231_Lab4.xlsx:
- Sheet
Sales: products A–E, columns Quantity, Unit Price, Revenue (=Quantity*UnitPrice). - Totals row with
SUMfor Quantity and Revenue;AVERAGEof Unit Price. - Status column:
IFRevenue ≥ 10000 then"High"else"Normal". - Format Revenue as currency (NPR or local).
- Freeze the header row.
- Use absolute references for a tax rate cell (e.g.
$B$1) to compute Tax = Revenue * tax rate.
Use at least five product rows with invented but realistic numbers.
Deliverable
The .xlsx file.
Viva
- What is a cell reference? Give a relative and an absolute example.
- What does
SUMignore that you still must check by eye? - How is a spreadsheet different from a word-processor table?
- Why freeze panes?


