[Tex/LaTex] Longtable margin

Question

I use the package longtable for build tables. But the table has many columns, then it to fall outside the limits page.
How do I fix this? And how to change the margin for tables?

Look at the example:

Thanks.

Answer 1

If you need the table to be a bit wider than the normal text width and have it leak into the margins slightly you can set the left margin to be negative, for example

\setlength\LTleft{-1cm}

alternatives are to use a smaller font, for example putting \small before the longtable. Also you have not shown your TeX code but it looks like you have used c columns. As in a standard tabular c columns never wrap over a line automatically, so you may want to make some of your columns fixed width with p{3cm} or whatever width is suitable, then TeX will linebreak and justify the entries to that width.