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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.

Drop XLSX files here
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À propos du format de sortie

When PDF is the right output

PDF is the universal fixed-layout document format — it renders identically across viewers, preserves fonts and formatting, and is the accepted-by-default format for invoices, contracts, government uploads, academic submissions, and portfolio work. Convert to PDF when the receiving system explicitly wants PDF or when the layout must not shift.

XLSX vs PDF: Side-by-side

Comparaison technique des deux formats — utile pour décider lequel utiliser ou pour confirmer les changements lors de la conversion.

Property XLSX PDF
Nom complet Microsoft Excel (Open XML) Portable Document Format
Year introduced 2007 1993
Développeur / organisme standard Microsoft Adobe
Type MIME application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/pdf
Extension de fichier .xlsx .pdf
Compression XML compressé ZIP Built-in (FlateDecode, DCTDecode)
Couleur/profondeur des données N/D Vector + raster
Max dimensions / size 1 048 576 lignes × 16 384 colonnes 381 km × 381 km (15,000 × 15,000 inches)
Transparence Non Yes
Animations Non Non
Standard / specification ECMA-376 / ISO/IEC 29500 ISO 32000
Idéal pour Feuilles de calcul Excel modernes, analyse de données 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.