Archivematica is a system that stores digital files along with metadata (data about your files like file name, type, creation date, etc.). When you upload files to Archivematica, it bundles them into something called an AIP (Archival Information Package) — a folder that contains:
The original files you uploaded
A METS.xml file — an XML file where Archivematica stores the metadata about those files
How to get your files and metadata back:
From the Archivematica dashboard — you can download the whole AIP package.
From the storage location (if you have file system access) — you can find and unzip the AIP.
Using the REST API — you can connect programmatically to Archivematica to request the files and metadata.
Inside the AIP:
Your original files are in a folder like data/objects/
Metadata about those files is in metadata/METS.xml
You can open this METS.xml file and read the metadata — either manually or using a Python script.