XLSX to TIFF Converter
FileFlip converts XLSX to TIFF entirely inside your browser, using Pandoc, MuPDF and ImageMagick compiled to WebAssembly. The file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. That means no file-size limit, no queue and no account.
How do I convert an XLSX file to TIFF?#
- Drop your XLSX file onto the converter at the top of this page, or click it to pick one from your computer. You can add as many as you like.
- Leave the target set to TIFF and the conversion starts on its own. FileFlip downloads 79.9 MB of WebAssembly the first time and nothing after that, then runs Pandoc, MuPDF and ImageMagick on your own machine.
- Save the TIFF file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting XLSX to TIFF lose quality?#
Yes, in the sense that text stops being text. Each XLSX page is rendered to pixels and handed to TIFF, so the result looks right and can no longer be selected, searched, or reflowed.
Is it safe to convert XLSX files online?#
Yes, because nothing is uploaded. FileFlip converts XLSX files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What XLSX to TIFF actually does to the file#
Converting XLSX to TIFF runs on Pandoc, MuPDF and ImageMagick, downloads 79.9 MB of WebAssembly the first time and nothing after that, renders each page to pixels, keeps page layout, and drops selectable text and transparency.
| Engine | Pandoc, MuPDF and ImageMagick |
|---|---|
| Conversion path | 3 steps: XLSX → HTML → PNG → TIFF |
| Downloaded to your browser | 79.9 MB, once, then cached by your browser |
| Quality | Text becomes pixels |
| You get back | One image per page, zipped when the source has several |
| Where it runs | In a background worker, so the page stays responsive |
What survives the conversion
| What is in the file | This conversion | Why |
|---|---|---|
| Selectable text | Dropped | The target format has nowhere to put it. |
| Page layout | Kept | Carried through into the converted file. |
| Transparency | Dropped | The target format has nowhere to put it. |
Worth knowing before you start:
- pages render at twice their point size in opaque RGB, roughly 144 DPI, with no transparency
- reflowable input is laid out on a fixed 595x842pt page at 11pt before anything else happens
- the file passes through HTML on the way, so anything HTML cannot express does not survive
What is an XLSX file?#
An XLSX file is a ZIP archive of XML parts holding a workbook's sheets, cell values, formulas and formatting, structured under the same Office Open XML standard as DOCX and PPTX, and it has been Excel's default format since Excel 2007.
Use XLSX for any workbook that still needs formulas, multiple sheets or recalculation, since that behavior only exists while the file stays a spreadsheet.
Convert an XLSX file to a document format when the sheet was really being used to lay out a table for reading, not for calculation, and the destination just needs the values.
What is a TIFF file?#
A TIFF file stores one or more raster images, usually uncompressed or losslessly compressed, inside a tagged container that scanners, printers, and publishing software rely on to keep exact pixel data intact through repeated edits.
Use TIFF for scanned documents, print production, and archival photography, where preserving every pixel losslessly matters more than file size.
Convert TIFF to JPEG or PNG when the image needs to go on the web or be shared casually, since browsers cannot display TIFF and the files are far bigger than screen viewing requires.
XLSX to TIFF questions people ask#
What happens to formulas when converting an XLSX file to a document?
Each formula is replaced by whatever value it last calculated to, since a document format has no concept of a spreadsheet formula or recalculation. The number that shows up is correct as of the moment the workbook was saved, but it will never update again after the conversion.
Can I open an XLSX file without Excel?
Yes, Google Sheets, LibreOffice Calc and Apple Numbers all open and save XLSX files natively. Formulas and basic formatting generally survive; Excel-specific add-ins and some advanced chart types are the parts most likely to behave differently elsewhere.
What's the difference between XLSX and CSV?
XLSX keeps multiple sheets, live formulas, cell formatting and data types in one ZIP archive of XML. CSV is a single flat table of plain text values with none of that, which makes it simpler to parse but unable to represent anything a spreadsheet actually calculates.
Why does converting a multi-sheet XLSX file produce more than one table?
Because each sheet in the workbook is its own independent grid of data, converting the file to a document turns every sheet into its own separate table in the output rather than merging them into one.