openspout/openspout

Health v2 · maintenance only

Adoption not part of the score

1261 stars · 155 forks observed · 2026-10-10

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

OpenSpout is a community-maintained PHP library for reading and writing spreadsheet files in CSV, XLSX, and ODS formats. It processes very large files in a streaming fashion while keeping memory usage under 3MB.

Use cases

• read large xlsx files in php without running out of memory
• export database rows to csv or xlsx
• stream a large spreadsheet to the browser in symfony
• read data from a specific sheet in an ods file
• append rows to an existing spreadsheet
• convert csv to xlsx in php

When to choose

• you need to process spreadsheets too large to load into memory
• you want fast, low-overhead reading/writing of CSV, XLSX, or ODS in PHP
• you are migrating from box/spout and want a maintained fork

When to avoid

• you need rich formatting, formulas, charts, or cell styling
• you work outside the PHP ecosystem
• you need to modify complex existing workbooks in place

Facets

library · maturity active

parser serialization csv file-system files spreadsheets developer-tools php cli xlsx ods spreadsheet streaming low-memory box-spout-fork data-engineering

Member repositories

For agents

markdown · JSON · MCP: product_card(name="openspout/openspout")