SheetLink is free Revit import/export data plugin that is now available for Revit 2016, 2017, 2018 and 2019.
This plugin developed by DiRoots team that allows you to synchronise the model data back and forth between Autodesk Revit and spreadsheets. For more information, please visit two web links below.
Plugin Download: https://diroots.com/revit-plugin-sheetlink/
Promo Video: https://www.youtube.com/watch?v=h4Mu-IUzuEg&t=2s
We are currently into adding a few more features to SheetLink and hopefully, soon it will be even more interesting!