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DATA / FROM ONE FORMAT TO THE NEXT

Data Converter

Turn spreadsheets and structured data into the format you need. Preview, tidy and download—everything stays with you.

● Local by design

Drop data files here, or choose files

Excel, CSV, TSV, JSON, JSON Lines, YAML, XML and OpenDocument spreadsheets

Up to 10 files · 25 MB per file · 75 MB total

01Your data

0 files0 sheets selected

A fresh start for your dataChoose a file or paste some data to begin.

Import options

First row contains column names

Text separator

Text encoding

Flatten nested object fields

Records path · optionalUse this when the rows sit inside a larger JSON or XML object.

These options apply to the next import or re-read. Re-reading restores the source data.

04Save it your way

Convert toA workbook can keep several sheets in one file.

Download name

Text separator

Text encoding

Structured data layout

Line endings

Export

Keep sheets together in one workbook

Export prepares your files. Then click Download in Your downloads to save them.

Import data to get started.

What carries across?

This tool converts data. Spreadsheet styles, charts and macros are not preserved, and formulas are not calculated here. Leading-zero text stays text unless you explicitly change a column’s type. Choose a workbook when you need several sheets in one file.

Rows in this sheet0

Included columns0

Empty cells0

02Preview your data

Choose a sheet to see its contents.

The preview shows your working data. Filters also apply to exports.

See the data before you save itRows and columns appear here after import.

03Tidy & arrange

Original data

Find text · optional

Replace with

Fill empty cells · optional

Number decimal separator

Columns, names & types

Include · name · type · text case · duplicate key · order

Keep original values preserves identifiers such as 00123. A type change is explicit. Tick the key boxes to compare only those columns when removing duplicates.

Date order for date conversions

Bring sheets together

Tick two or more sheets in Your data, then append their rows. Columns are matched by name.

Add a source column

05Your downloads

Your converted files appear here after export.