UCRArchive_2018_128.rar and MTSC.rar are datasets.
Unzip UCRArchive_2018_128.rar, then replace the folder UCRArchive_2018_128 with unzipped UCRArchive_2018_128.rar
Unzip MTSC.rar, and download the multivariable time series datasets by the website in MTSC.rar