Articles tagged: #laravel

"The Excel file downloads but is corrupted" almost always means stray bytes around the ZIP. Here is how to send an XLSX to the browser properly: download()/output(), the reference headers, and recipes for Laravel and Symfony controllers.

Streaming export with cursor() keeps memory flat, but touching a model's relations inside the export triggers N+1 — thousands of extra queries. Here is why cursor() cannot help with relations and how to export them through lazy() without giving up the memory savings.

Importing Excel into Eloquent models usually turns into a loop that picks cells apart by hand. Here is how withHeadings() and mapping() cut it down to a few lines, and how to bind “foreign” columns of a file to your model's attributes without guesswork.

Laravel Excel runs out of memory on a large export not because of your code but because of PhpSpreadsheet's architecture. Here is why chunking does not save you, and how streaming export through cursor() keeps memory flat.