The 20 functions that handle 90% of real analysis work, with copy-paste examples for Excel and Sheets.
Data & AnalyticsPDF · 11 pages· v1.0
4.9You do not need to know 400 spreadsheet functions. You need about 20, used well. This guide covers exactly those: the lookups, conditional aggregates, text wranglers, and logic functions that do almost all real analysis work, with clear examples you can adapt immediately in both Excel and Google Sheets. It is for anyone who builds spreadsheets and keeps hitting limits: doing lookups by eye, copying values between tabs, or wrestling with text that will not split. No prior formula expertise needed; the guide builds from simple to advanced. You will master the conditional aggregates SUMIFS, COUNTIFS, and AVERAGEIFS (the workhorses of reporting), modern lookups with XLOOKUP and INDEX/MATCH (and why to retire VLOOKUP), the IFERROR pattern that stops ugly errors, text functions TEXT, LEFT/RIGHT/MID, TRIM, and SUBSTITUTE, date math with EOMONTH and DATEDIF, and the modern dynamic-array functions FILTER, UNIQUE, and SORT that replace dozens of old tricks. Each function gets the syntax, a plain-language description, a realistic example with sample data, and the common mistake that trips people up. Differences between Excel and Google Sheets are flagged throughout. The outcome: a fast, reliable toolkit. You will stop fighting your spreadsheet and start answering questions, looking up values, summarizing by multiple conditions, cleaning text, and computing dates, in seconds.
XLOOKUP where available (modern Excel and Google Sheets), with INDEX/MATCH as the universal fallback. The guide explains why VLOOKUP is fragile (breaks when columns move, can only look right) and shows the better alternatives.
Nearly all do, and the guide flags every difference. A few functions like dynamic arrays (FILTER, UNIQUE, SORT) and XLOOKUP require recent versions; the guide notes the requirements and gives fallbacks.
Both. It starts from basic syntax and builds to dynamic arrays. Beginners get a structured path; experienced users get the modern patterns (XLOOKUP, FILTER) that replace older habits.
Because they genuinely cover the vast majority of analysis tasks. Knowing 20 functions deeply beats knowing 200 shallowly. The guide is about fluency with the ones that matter.
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