AEMO's website has the same data as distributed through the NEM file interfaces, with the exception of participant’s private data. The data is mostly in CSV format with some graphical summaries. Data retention depends on the file type, for example, Dispatch files are kept for 2 days. The section for each file type explains how long each file remains in the current directory
Older files are moved to the Reports archive and kept for 13 months.
Registered Participants setting up a new Data Interchange instance can populate their Data Model tables with data from the Participant File Server\MarketData\Baseline folder.