highlight the cell you want to change, on the main menu selec
Format>cells (CTRL+1), click the 'Alignment' tab and uncheck Wrap Text
Your text line now shows small squares at the point of each carriag
return. Press F2 (edit) and delete the squares (they may not b
visible in edit mode, but they are still there, place the cursor i
front of the square's location and press Delete). Your text should no
be back on one line