What is index column in Google Sheets?
Index Column is lookup vocabulary: how MATCH, VLOOKUP, XLOOKUP, FILTER, and QUERY decide which row or value to return. Exact vs approximate match and wildcard rules change outcomes more than beginners expect.
When to use it
Use this jargon when configuring lookups, criteria ranges, or match modes so the right row comes back.
When to skip it
Skip manual match-mode tuning when FILTER or QUERY with clear column conditions is easier to maintain.
Better Sheets resources
Related Tutorials
Watch how index column works
How To Add Columns in Google Sheets
Related blog posts
Guides that explain index column in more depth.
Beginners Guide to Using Index, Row, and Column | Simply useful Google Sheets Formulas
You may be using Google Sheet to do math and find that you need to iterate a number. ROW() gets you the row you're on, and helps you with this.
Read post →How To Add Columns in Google Sheets
How to add columns in google sheets, in 7 different ways.
Read post →Related terms
MATCH
MATCH searches a range for a value and returns its relative position. Feeding INDEX or OFFSET with MATCH replaces brittle column index math. Sorted approximate match modes support tier tables and date brackets.
Read guide →INDEX
INDEX fetches a value from a range by row and column number. Combined with MATCH it powers flexible lookups. Alone it picks nth items from lists, dynamic headers, or matrix intersections without VLOOKUP column limits.
Read guide →VLOOKUP
VLOOKUP searches the first column of a range for a key and returns a value from a specified column to the right. It is still everywhere in legacy templates even as XLOOKUP offers more flexible replacements.
Read guide →XLOOKUP
XLOOKUP searches a lookup array for a key and returns a matching value from a return array. It handles left lookups, approximate match, and custom not-found text without INDEX/MATCH gymnastics.
Read guide →Done reading about index column?
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