Any file up to 500 MB. Drop several files and they come back as one ZIP. Many image, audio and video conversions run in your browser; anything else is uploaded and removed within the hour.
Convert your XLS spreadsheet documents into universally readable PDF files instantly. This tool is essential for accountants, analysts, and office workers who need to share tabular data without formatting shifts.
XLS is a binary spreadsheet format native to Microsoft Excel, designed for data computation, formulas, and grid management. PDF, created by Adobe, is a fixed-layout document format that preserves exact visual presentation across all devices. When you convert XLS to PDF, your spreadsheet rows, columns, and cell borders are locked into a static document layout, preventing unintended edits and ensuring your tables print exactly as intended.
The conversion between XLS and PDF is executed without losses, meaning text clarity, numerical data, and structural alignments are preserved completely.
We built this project so anyone can convert files without paywalls, accounts, or hidden limits. Here is what that promise means in practice.
Every converter on ConvertX is free to use: no trials, no premium tiers, and no credit packs. We will never put core conversion features behind a subscription. Whether you convert one photo or a hundred files a week, the price stays zero.
Many image, audio, and video conversions run entirely in your browser. Your files never leave your device for those jobs. When server processing is required for documents or specialized formats, uploads are handled securely and removed automatically — typically within one hour.
A quick guide to strengths and trade-offs of popular formats — so you pick the right one before converting.
Office files, PDFs, ebooks, and plain text.
Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT
Raster and vector graphics for web, print, and photography.
Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF
Clips, streams, screen recordings, and movies.
Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG
Music, podcasts, voice recordings, and sound effects.
Common extensions: MP3, WAV, FLAC, OGG, AAC, M4A, OPUS
