countifs

Professional Excel training workbook covering 57 formulas — Text, Lookup, Statistical, Financial, Logic, and Math formulas with real-world examples

Comprehensive financial analysis of customer invoices built with Excel. Utilizes formulas (SUMIFS, COUNTIFS), pivot tables, and a range of charts (Pie, Bar, and Scatter) to assess payment delays and evaluate revenue concentration risk.

attendance tracker using MS Excel

Excel-based analytics project solving business questions across orders, customers, and sales rep data using lookups, pivot tables, and advanced formulas.

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Perform element-wise evaluation of one or more input arrays according to provided predicate functions and count the number of elements for which all predicates respectively return `true`.