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Is there any such open source table format for row based data?

I've been dabbling with implementing a database, and adopting a format would be much easier.

Apache AVRO [1] is one but it has been largely replaced by Apache Parquet [2] which is a hybrid row/columnar format

As a note, Iceberg also supports AVRO in addition to Parquet (and ORC).

SQLite is something like that.