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A lightweight Blender 5 add-on that restores support for importing .dae (COLLADA) files after the official importer was removed in version 5.
Installation
Download simple_collada_importer.py
Blender → Edit → Preferences → Add-ons
Click Install… → select the .py file
Enable Simple COLLADA (.dae)
Import via File → Import → Simple COLLADA (.dae)