Data Converter
Convert spreadsheet values and tables between Excel, CSV, JSON, ODS, and older formats.
Drop spreadsheet or data files here
XLSX, XLS, ODS, CSV, TSV, JSON, DBF and more · up to 25 MB each
You can drop files anywhere on this page.
Convert a spreadsheet to CSV or a CSV table to JSON
Drop an XLSX and choose CSV to get one file per worksheet with data. To turn a CSV into JSON records, give each column a unique, nonblank name in the first row and choose JSON. Check the exported fields before importing.
For JSON to Excel, use an array of objects or JSON Lines with one object per line. Choose XLSX for a workbook. Keep your original when you need formulas, macros, or formatting.