Open a notebook instance and click Upload in the upper right corner to upload a local file to the notebook instance.
You are advised to use OBS to upload large files. Use OBS Browser to upload a local file to an OBS bucket and use ModelArts SDKs to download the file from OBS to a notebook instance.
To upload files using OBS Browser, refer to Uploading a File.
To use ModelArts SDKs to download files from OBS to a notebook instance, refer to Downloading a File from OBS.
Compress a folder into a package and upload the package in the same way as uploading a large file. After the package is uploaded to a notebook instance, decompress it on the Terminal page.