Sites like PHP-Download allow you to enter a package name, and their server runs Composer for you, providing a single .zip file containing the library and all its dependencies. Method 3: Manual GitHub Download (Expert Only)

You can download zip archives of PhpSpreadsheet from SourceForge. Some of these mirrors aim to provide a more "complete" package than the raw GitHub source.

If you must download directly from the official GitHub repository : PhpSpreadsheet without Composer #1969 - GitHub

On your own computer (Windows/Mac/Linux), download Composer .

This is the most reliable way to "avoid" Composer on your live server while ensuring the library actually works.

While Composer is the officially supported installation method for , you can still use the library without it by performing a manual setup or using a "pre-packaged" approach. Why Manual Installation is Tricky

In a local folder, run: composer require phpoffice/phpspreadsheet .