This version of Unity is unsupported.
Asset workflow
Introduction to importing assets

Importing assets

You can import external files, such as textures, models, audio, and scriptsA piece of code that allows you to create your own Components, trigger game events, modify Component properties over time and respond to user input in any way you like. More info
See in Glossary
into your project, which Unity then manages and maintains for your project. Additionally, you can use tools such as the Import Activity window to monitor asset import timings and keep track of any assets which take a long time to import.

Topic Description
Introduction to importing assets Learn the basics of importing assets into Unity.
Asset metadata Understand how Unity manages metadata for imported assets.
Importing assets simultaneously Import multiple assets at the same time.
Creating custom importers Create and use custom importers for non-native file types.
Analyze importers Analyze and debug asset importers.
Text assets Use text assets to store text and binary data in your project.
Supported asset type reference Reference for asset types supported by Unity.

Additional resources

Asset workflow
Introduction to importing assets