Excel Function Dictionary: Your Ultimate Formula Guide Excel functions are the ultimate productivity shortcut. They turn complex data calculations into single-word commands. Whether you are building a budget, analyzing sales data, or managing large inventories, this organized dictionary covers the essential tools you need to master. 🔢 Mathematical & Statistical Functions
These functions handle calculations, averages, and data counts. SUM: Adds all numbers in a range. AVERAGE: Calculates the arithmetic mean of a range. COUNT: Counts cells containing numbers only. COUNTA: Counts all non-empty cells (text and numbers). COUNTIF: Counts cells that meet one specific condition.
SUMIF: Adds numbers in a range that meet a specific condition. 🔍 Lookup & Reference Functions
Use these to find and retrieve data from different parts of your spreadsheet. VLOOKUP: Searches vertically down a column to find data. HLOOKUP: Searches horizontally across a row to find data.
XLOOKUP: The modern, flexible replacement for VLOOKUP and HLOOKUP.
INDEX: Returns a value at a specific row and column intersection. MATCH: Finds the position of a value in a range. ⚡ Logical Functions
These functions test conditions and return specific results based on outcomes.
IF: Checks a condition and returns one value if true, another if false. AND: Returns true if all specified conditions are met. OR: Returns true if at least one condition is met. NOT: Reverses the logic of its argument.
IFERROR: Catches errors and displays a custom fallback value. 🔤 Text Functions
Clean, combine, and modify text strings with these utilities. CONCAT: Joins two or more text strings together.
TEXTJOIN: Combines text with a specific delimiter (like commas).
LEFT / RIGHT: Extracts a set number of characters from the start or end. MID: Pulls characters from the middle of a text string. TRIM: Removes all extra spaces from text.
UPPER / LOWER: Converts text to all uppercase or all lowercase. 📅 Date & Time Functions
Track deadlines, calculate durations, and organize schedules. TODAY: Displays the current current date. NOW: Displays the current date and time.
DATEDIF: Calculates the days, months, or years between two dates.
NETWORKDAYS: Counts the number of working days between two dates.
YEAR / MONTH / DAY: Extracts individual components from a date.
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