FileReshape

Spreadsheet converters

Move a table between Excel, CSV and JSON without opening a spreadsheet program or pasting data into a website. The converters read the file in your browser, show the first rows so you can check the columns, and write a clean file for the program you need next. Customer lists, price lists and exports from accounting or shop systems stay on your computer.

Formats

Which tool do I need?

A CSV opens in Excel as one long column, or with ø instead of ø
CSV to Excel detects the separator and the encoding and writes a real .xlsx workbook, so the columns, accents and leading zeros come out right in every Excel version. Convert CSV to Excel (XLSX)
A system or website wants a CSV, but you have an Excel workbook
Excel to CSV lets you pick the sheet and the CSV style, including semicolons and decimal commas for Excel in Europe. Dates are written as 2024-05-01. Convert Excel (XLSX) to CSV
You have JSON from an API or an app and want a table
JSON to CSV finds the list of records, even inside a wrapper such as "data", and turns nested fields into columns such as address.city. Convert JSON to CSV
A program or a script needs JSON, but your data is in a CSV
CSV to JSON writes one object per row, with real numbers and true/false values, or everything as text if you prefer. Convert CSV to JSON

Leading zeros and long numbers

Postcodes such as 0150, product codes such as 007 and numbers with more than 15 digits, such as card or account numbers, are kept as text. Excel would otherwise drop the zeros or round the last digits, and that cannot be undone later.

Separators and decimal commas

Excel writes CSV files with commas or semicolons depending on the language settings of the computer. The converters detect the separator and the decimal comma when they read a CSV, and let you choose the style when they write one.

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Have latitude and longitude columns? Turn the rows into points on a map: Convert CSV to GeoJSON · Convert Excel (XLSX) to GeoJSON · GIS and map file converters