If you are confident that it is well-formed, bulk-load it into SQLite is the easiest method. There're methods in R and Pandas too. Or you could load into the E

If you are confident that it is well-formed, bulk-load it into SQLite is the easiest method. There're methods in R and Pandas too. Or you could load into the Excel data model instead of the grid, look in the Get & Transform feature. Then do your initial exploration there. Data model (formerly Power Pivot ) is very underrated IMHO.