DataTray

About

DataTray

DataTray opens, converts, dedupes, cleans and compares the CSV, Excel, Parquet and JSON files that break Excel — on your own PC, with no row limit and no upload. Free, ad-free, Windows 10/11. Open the CSV that stopped at a million rows, the workbook that will not load, the Parquet file Windows has never heard of. Find the duplicates, fix the formats, see what changed — and get a report you can send. Nothing uploads. Five tiles in a tray window. Click through it here before you install anything. Organised by what each one does to your data — from the tile that changes nothing at all to the one that rewrites every value you tell it to. Read-only, always. Open a CSV, Excel workbook, Parquet directory or JSON file of any size and look at the rows — then switch to Columns for a full data profile: what every column actually holds, where the nulls and the mixed types and the outliers are, a data-quality read on each one, and a data dictionary you can hand to someone. A third tab takes SQL if you want it, and never asks you to write any if you don’t. Nothing here modifies the file; the only things written are the exports and reports you ask for. CSV, TSV, Excel, Parquet, JSON, JSONL and XML, in whichever direction you need — including the ones Windows has no answer for. Twelve files into one, or one file split into twelve, because converting, combining and splitting are the same job at different cardinalities. Drop a folder in and it works out which you meant. Excel tells you “482