# Need help to fill this matrix

I have a listo of 1000 numbers $$\{x_0,x_1,\cdots,x_{999}\}$$, I need to fill a matrix with these numbers. The matrix must have this form:

$$\left( \begin{array}{cccc} x_{9} &x_8 &\cdots& x_0 \\ x_{10} &x_9 &\cdots &x_1 \\ \dots & \cdots& \cdots &\cdots\\ x_{999} &x_{998} & \cdots& x_{990} \end{array}\right)$$

I have tried with

k = 0;
line = {};
mat = {};
Do[
Do[AppendTo[line, x[[k + i]]], {i, 10}];
AppendTo[mat, line];
k = k + 1;, {j, 10}]

but it is wrong