How to Put Serial Number in Excel Using Formula: Simple WayUpdated a month ago

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Adding serial numbers in Excel using a formula ensures an automatically updating sequence that adjusts as data changes. The simplest method is using the ROW function. If you want serial numbers starting from row 1, type =ROW(A1) in the first cell and drag the fill handle down to generate sequential numbers. 

Key Highlights: Put Serial Number in Excel Using Formula

1. Using ROW Function:

   • Enter =ROW(A1) in the first cell to generate sequential numbers.

   • If starting from a different row, adjust using =ROW(A5)-4.

2. Using SEQUENCE Function (Excel 365/2019):

   • Type =SEQUENCE(n,1,start,step), where:
     • n = number of rows
     • start = first serial number
     • step = increment value (default is 1)

3. Using Increment Formula:

   • Enter 1 in the first cell, then =A1+1 in the next cell.
   • Drag down to auto-fill the series.

4. For Tables:

   • Use =ROW()-ROW(Table1[#Headers]) to generate auto-numbering in Excel tables.

These methods ensure automatic and flexible serial numbering in Excel.