Consider this example:
\documentclass{report} \usepackage{makecell} \begin{document} \begin{tabular}{ll} A0 & \makecell{B01\\B02}\\ A1 & Bbbbbbb1 \end{tabular} \end{document} I use \makecell in order to employ \\ in a table cell. The output is:
The alignment of \makecell is centred which is in dissonance with the lefthanded alignment of the cell below. Hot to make the alignment of \makcell lefthanded?



\makecell[l]{B01\\B02}