Unmerge one selection
How to unmerge cells in excel:
- Select the merged range (or any cell inside it).
- Home → Merge & Center → Unmerge Cells.
- Only the top-left cell keeps the value; other cells become empty—copy/fill if you need the label on every row.
Shortcut path: Home ribbon → Alignment group → Merge & Center dropdown.
Unmerge an entire sheet
- Select all (
Ctrl+A). - Unmerge Cells.
- For title rows used only for layout, consider Center Across Selection instead of Merge (Format Cells → Alignment → Horizontal).
Why merged cells break tools
Merged headers break filters, pivots, sort, and many imports. After unmerging:
| Next step | Tool / guide |
|---|---|
| Normalize header names | Header normalize |
| Split one field into columns | Column split |
| Join two columns of text | Merge two columns |
| Prep for SQL | Excel to SQL |