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DataTray — a Windows data utility belt

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,...

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What is DataTray — a Windows data utility belt?

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.

Key Features

Read-only data explorer

Open a CSV, Excel workbook, Parquet directory or JSON file of any size and look at the rows, with a full data profile showing column types, nulls, and outliers.

Data conversion

Convert between CSV, TSV, Excel, Parquet, JSON, JSONL and XML in any direction, without row limits.

Deduplication and file comparison

Find and remove duplicates, and compare files to see what has changed.

Data cleaning and formatting

Fix data types, handle nulls, and rewrite values according to your instructions.

Tool Information

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