Supports .xlsx, .xls and .csv — including multi-sheet workbooks. Each sheet is converted to its own PDF.
Multi-sheet workbooks supported — each sheet becomes its own PDF
Reads .xlsx, .xls, and .csv files using SheetJS — the industry-standard spreadsheet parser.
Multi-sheet workbooks are split into individual PDFs — one per sheet — with headers repeated on every page.
Everything runs in your browser. Your file never leaves your device — no server uploads at all.