Data file tools

Convert CSV to an Excel file (XLSX) with the encoding and delimiter detected automatically. Runs in your browser, free, no sign-up.

Convert Excel sheets (XLSX) to CSV files that open correctly in Excel again. Runs in your browser, free, no sign-up.

Convert an Excel table (XLSX) to XML, with the header row as element names. Runs in your browser, free, no sign-up.

Flatten XML data into an Excel table (XLSX), one row per repeating element. Runs in your browser, free, no sign-up.

Cut a long Excel sheet into several files with a fixed number of rows each, header included. Runs in your browser, free, no sign-up.

Convert a CSV table to an array of JSON objects, with numbers, booleans and nested objects preserved. Runs in your browser, free, no sign-up.

Convert a CSV table to XML, with the header row as element names. Runs in your browser, free, no sign-up.

Cut a large CSV into files with a fixed number of rows each, with the header repeated in every file. Runs in your browser, free, no sign-up.

Flatten XML data into a CSV table, one row per repeating element. Runs in your browser, free, no sign-up.

Convert XML to JSON, either as a flat array of rows or with the full element tree preserved. Runs in your browser, free, no sign-up.

Convert JSON (including JSON Lines) to XML, with objects as elements and arrays as repeated elements. Runs in your browser, free, no sign-up.