\documentclass{article} \usepackage{xsim} \DeclareExerciseCollection{foo} \usepackage{filecontents} \begin{filecontents*}{random.tex} \begin{exercise}[ID=A] exercise A \end{exercise} \begin{solution} solution A \end{solution} \begin{exercise}[ID=B] exercise B \end{exercise} \begin{solution} solution B \end{solution} \begin{exercise}[ID=C] exercise C \end{exercise} \begin{solution} solution C \end{solution} \begin{exercise}[ID=D] exercise D \end{exercise} \begin{solution} solution D \end{solution} \begin{exercise}[ID=E] exercise E \end{exercise} \begin{solution} solution E \end{solution} \begin{exercise}[ID=F] exercise F \end{exercise} \begin{solution} solution F \end{solution} \end{filecontents*} \begin{document} \collectexercises{foo} \input{random.tex} \collectexercisesstop{foo} \section*{Exercises} \printrandomexercises[collection=foo,exclude=D]{3} \section*{Solutions} \printsolutions* \end{document}