You can merge two or more cells into one easily in Microsoft Excel Sheet. During merging the cells together, it must be noted that content does not merge. Merging cells together simply removes the separating boundary between cells.
You can find additional options listed under the Merge and Center Control drop down list along with Merge and Center option. This control is listed under Alignment group in Home Tab.
Wrap Text and Shrink to Fit
In case the text is too long for a cell to accommodate, you can use one of two options, Wrap Text or Shrink to Fit. Wrap Text will adjust the text in separate lines one below the other whereas shrink to fit will reduce the size to fit within the cell width.