Spreadsheets for the office
The formulas an office job really uses, in Excel or Google Sheets: sums, percentages, IF, lookups, dates and pivot tables.
Cells and formulas
Where a spreadsheet starts: how cells are named, how a formula is written, and why a total comes out right or wrong.
Everyday functions
The functions an office uses every day: averages, counts, totals by name, rounding and percentages.
Making decisions
Make a sheet decide for itself: show one thing or another with IF, join tests with AND and OR, and flag the invoices that are overdue.
Looking things up
Fetch a price, a name or a credit limit from a list with VLOOKUP, XLOOKUP, and INDEX with MATCH. Then fix the lookups that fail.
Dates and text
How a spreadsheet stores dates, how to count days and work out due dates, and how to join, split and tidy text that arrives in a mess.
Summarising data
Turn a long list into answers: sort it, filter it, total it by customer or by month with a pivot table, and check the result.