XlModeler brings regression and volatility models of OxMetrics to Excel.
Build a multiple regression or GARCH-type model.
Use Autometrics for powerful automatic model selection.
Use advanced checks for model mis-specification.
Powerful graphics aide the model evaluation.
Websites: https://www.xlmodeler.com/ and https://www.timberlake.co.uk/software/xl-modeler.html
Documentation: download here.