Apache Parquet Preview

CosmoQuickView renders Apache Parquet files as a metadata card: row counts, row-group layout and the full column schema, read straight from the footer without decoding any data pages.

Supported file extensions

.parquet

What you see

• Total row count and row-group count
• Writer application when the file records one ("Created by")
• Row-group list: rows, total byte size and column-chunk count per group (first 20 groups, overflow line beyond that)
• Full schema rendered as an indented name: type [repetition] tree, with group nodes for nested columns (first 200 nodes, overflow line beyond that)
• Metadata only — data pages are never decoded

Screenshot

Screenshot not yet captured — reserved path: /screenshots/parquet.png.