Select the cell where you want the merged result to appear
Enter a formula like `=A1&B1`
Add a space between columns if needed: `=A1&” “&B1`
Press Enter
Drag the fill handle down to apply the formula to other rows
Copy the results
Paste Special as Values if you want to keep only the merged text
Use `=CONCAT(A1,B1)` if your Excel version supports it
Use `=TEXTJOIN(” “,TRUE,A1,B1)` if you want to merge with a delimiter and ignore blanks
If you want to physically combine cells, select the cells
Go to Home
Click Merge & Center
Choose Merge Cells or Merge & Center