I'm new to DB design, and the guy who actually designed the DB doesn't know much about it either.
I am attaching a sanitized copy of 100 rows from our main data table, which currently contains about 530,000 rows. Our app is getting slower and slower the larger this table gets and I know it's probably badly designed but I figured I'd get to it later. Now I'm looking at it and I'm not even sure where to begin, since basically none of the data seems to be dependent on other parts of data on the same table.
It's not actually a zip file, but I can't zip files on this PC so I just stuck .zip on the end. It's an Excel file.