You can download the Yale–Classical Archives Corpus as four individual .zip files:
YCAC Data 1 (zipped CSV archive, 66 Mb) — individual CSV files for major composers, Bach through Mozart
YCAC Data 2 (zipped CSV archive, 24 Mb) — individual CSV files for major composers, Saint-Saëns through Wagner
YCAC Data 3 (zipped CSV archive, 66 Mb) — individual CSV files for minor composers, by first letter of last name
YCAC Metadata (zipped CSV, 225 Kb) — contains metadata records for each piece and movement in the corpus