I’m trying to analyse some ECoG data through MNE. I saw the tutorial on how to convert the format .edf to bids (this one: 08. Convert iEEG data to BIDS format — MNE-BIDS 0.8 documentation) but my data are in a different format, .npz. Is there a way to upload and preprocess this data with MNE?
You can certainly read those in MNE-Python. See the following tutorial: Creating MNE-Python data structures from scratch — MNE 0.23.0 documentation
All you need is some basic knowledge about numpy and the tutorial I linked.