Convert XLSX to PDF Free Online — Preserve Formatting & Charts
Convert Excel XLSX spreadsheets to PDF format online for free. Charts, formulas, and formatting are preserved in the output. No signup required.
Max file size 50MB. Sign up for more.
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Checking files and selected output formats.
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XLSX vs PDF: Side-by-side
Technical comparison of the two formats — useful for deciding which to use, or for confirming what changes during conversion.
| Property | XLSX | |
|---|---|---|
| Full name | Microsoft Excel (Open XML) | Portable Document Format |
| Year introduced | 2007 | 1993 |
| Developer / standard body | Microsoft | Adobe |
| MIME type | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet | application/pdf |
| File extension | .xlsx | |
| Compression | ZIP-compressed XML | Built-in (FlateDecode, DCTDecode) |
| Color / data depth | N/A | Vector + raster |
| Max dimensions / size | 1,048,576 rows × 16,384 columns | 381 km × 381 km (15,000 × 15,000 inches) |
| Transparency | No | Yes |
| Animation | No | No |
| Standard / specification | ECMA-376 / ISO/IEC 29500 | ISO 32000 |
| Best for | Modern Excel spreadsheets, data analysis | Final-form documents, contracts, archives — looks identical everywhere |
About the XLSX Format
XLSX (Excel Open XML Spreadsheet) is the default file format for Microsoft Excel 2007 and later. Built on the Office Open XML standard (ECMA-376, ISO/IEC 29500), it uses ZIP-compressed XML files to store spreadsheet data, formulas, formatting, charts, and pivot tables. XLSX replaced the legacy XLS binary format with a more efficient, recoverable, and interoperable architecture.
XLSX supports over one million rows and 16,000 columns per worksheet, 500+ built-in functions, conditional formatting, data validation, and advanced chart types. The format is natively supported by Microsoft Excel, Google Sheets, Apple Numbers, LibreOffice Calc, and most modern spreadsheet applications. XLSX is the global standard for financial modeling, data analysis, reporting, and business intelligence workflows.
XLSX to PDF FAQ
Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert XLSX files to PDF.
How do I convert an Excel spreadsheet to PDF?
Will the PDF preserve formatting and column widths?
Why convert Excel to PDF?
Can I convert a multi-sheet Excel file to PDF?
Is XLSX to PDF conversion free?
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