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Data Files are basic units of data in Daisho. Each Data File is a single 2-dimensional table - think of it as single Worksheet in Excel.

You can upload files, or create new files from existing files on Daisho.

All files OWNED by you get counted against your quota. Files SHARED by others DONT count against your quota.

You create a project by applying a recipe on data files. For example, you might use Driver Analysis recipe on sales data - that's one project. Time-Series analysis on the same data is another project. So is driver analysis using some other data.

Just like a data-file, projects OWNED by you count against your quota. And projects that are SHARED by others with you dont count.