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| HDF5 Last Updated on 2026-03-23 The HDF5 Field Guide

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HDF5 High Level Packet Table

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# HDF5 Packet Table APIs

## Introduction

The HDF5 Packet Table API (H5PT) provides an interface for storing and retrieving fixed-length packets of data in append-only datasets. Packet tables are optimized for streaming data collection where records are added sequentially.

See also
  HDF5 Packet Table APIs (H5PT) Reference Manual

## Packet Table Operations

Create packet tables with H5PTcreate or open existing ones with H5PTopen. Append packets using H5PTappend and read packets with H5PTread_packets. Get the number of packets with H5PTget_num_packets. Close with H5PTclose.

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