Spreadsheet Converter

Convert spreadsheets between XLSX, CSV, TSV, JSON and PDF formats. Keep your data intact.

Drop your files here, or browse

Supports XLSX, XLS, CSV, TSV, JSON

You can select multiple files at once (up to 50)

100% browser-based. Your files never leave your device.

Spreadsheet data often needs to move between different applications and systems. Exporting an Excel file to CSV for database import, converting to JSON for web APIs, or generating a PDF report from tabular data are all common tasks that DaConvert simplifies.

Our Spreadsheet Converter supports XLSX, CSV, TSV, JSON, and PDF formats. CSV remains the universal standard for data interchange—virtually every database, programming language, and analytics tool can read CSV files. JSON conversion is invaluable for web developers who need to transform spreadsheet data into a format their applications can consume directly.

The converter uses SheetJS (xlsx) library running entirely in your browser, ensuring that sensitive financial data, customer records, and business analytics never leave your device. Batch convert multiple spreadsheets at once and download the results as a ZIP archive.

Frequently Asked Questions

Will formulas be preserved during conversion?+
Formulas are converted to their calculated values when exporting to CSV, TSV, JSON, or PDF. The resulting files contain the data values, not the original formulas.
Can I convert a multi-sheet Excel file?+
Yes. When converting XLSX files with multiple sheets, all sheets are included in the conversion. For CSV output, sheets are combined or the first sheet is used depending on the target format.
What is the difference between CSV and TSV?+
CSV (Comma-Separated Values) uses commas as delimiters, while TSV (Tab-Separated Values) uses tabs. TSV is preferred when your data contains commas, as it avoids delimiter conflicts.
How do I convert Excel to JSON?+
Upload your XLSX file, select JSON as the target format, and click Convert. Each row becomes a JSON object with column headers as keys, producing an array of objects ready for web applications.