How to convert an Excel spreadsheet to PDF
The extension doesn't read .xlsx directly, because Office files are ZIP archives of XML plus a full rendering model. The route is to save your sheet as CSV and convert that, which produces a clean formatted table. If you need Excel's exact formatting instead, use Excel's own PDF export.
Takes about 2 min
Steps
Export the sheet as CSV
In Excel: File → Save As → CSV UTF-8 (Comma delimited). In Google Sheets: File → Download → Comma-separated values.
Do this once per sheet
CSV holds one sheet, so a multi-sheet workbook needs one export per sheet.
Open the extension and drop the CSV in
Choose Upload Files, then drag the file into the drop zone.
Convert
Six or more columns auto-switches to landscape. The result is a formatted table.
Worth knowing
- What you lose going through CSV: cell formatting and colours, charts, and multiple sheets in one file. Formulas become their computed values.
- What you gain: a clean readable table, and nothing uploaded anywhere.
- For a formatted financial report you're presenting, use Excel's own File → Export → Create PDF and set the print area first — choose landscape and "fit all columns on one page", or wide sheets spread across many pages in an unusable order.
Questions
Can I convert .xlsx directly?
No. Export to CSV first and convert that. Office formats are containers with their own rendering model — converting them faithfully means implementing most of a spreadsheet application, which is why the source app's own export gives better results anyway.
What happens to my formulas?
CSV stores the computed values, not the formulas, so the PDF shows the results. That's usually what you want in a document; if you need the formulas visible, use Excel's own export.