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{To the Editors of WIREs Comput. Mol. Sci.}

\opening{Dear Cl\'emence,}

\justifying
Please find enclosed our manuscript entitled \textit{``QUESTDB: a database of highly-accurate excitation energies for the electronic structure community''}, which we would like you to consider as an Advanced Review in \textit{WIREs Comput. Mol. Sci.}.

The present review summarises and extends our effort to build a comprehensive database of highly-accurate vertical excitation energies for small- and medium-sized molecules that we have named the QUEST database.
In order to gather the huge amount of data produced during the QUEST project, we have specifically created for the present article a brand new website [\url{https://lcpq.github.io/QUESTDB_ website}] where one can easily test and compare various theoretical methods.
We hope that the present review will provide a useful summary of our effort so far and foster new developments around excited-state methods.

We look forward to hearing from you.

\closing{Sincerely, the authors.}


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