XLSX converter

XLSX holds the live spreadsheet; PDF holds the snapshot you want signed off. Spreadsheet rendering needs a full office engine, so this conversion runs on our server, and uploaded files are deleted automatically within 24-48 hours.

What is XLSX?

XLSX is the Excel workbook format introduced with Office 2007: a zip archive of XML sheets, styles and formulas. It is the default container for tabular data in business, but a workbook is a living calculation, not a document, so layouts shift between Excel versions and alternative spreadsheet apps. Exporting to PDF pins the printed view of each sheet so the numbers land in front of the reader exactly once, exactly as formatted.