Convert WK3 to WebP
Convert WK3 to WebP online: every Lotus 1-2-3 sheet printed as a formatted grid, saved as a compact WebP image. Free, no sign-up.
Drop your WK3 files here
Up to 50MB per file.
Conversion Settings
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your WK3 files
Drag and drop or select WK3 files from your device. You can upload multiple files at once.
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Configure Output
Choose any available WebP output options, then start the conversion.
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Download WebP files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert WK3 to WebP?
A WK3 file is a Lotus 1-2-3 Release 3 worksheet, the version that introduced several sheets stacked in one file. The WebP shows the worksheet's cells as LibreOffice Calc prints them, with calculated values, number formats and text laid out in rows and columns, sheet by sheet.
WebP stores the rendered image in a modern, efficient format, so the file is noticeably smaller than an equivalent PNG or JPG.
Frequently Asked Questions
How do I convert WK3 to WebP?
Drop your WK3 file above and press Convert. Our servers open the Lotus worksheet in LibreOffice Calc, print every sheet to a PDF and render each page as an image. The result is saved as a compact WebP image, ready to download.
Is every sheet of a multi-sheet WK3 included in the WebP?
Yes. Release 3 files can hold several sheets, and each one is printed in turn, so all of them appear in the WebP pages.
Do Lotus @ functions in a WK3 show their results in the WebP?
Yes. LibreOffice Calc reads Lotus formulas such as @SUM and @AVG, and each cell prints its calculated value.
What happens when a WK3 file fills several WebP pages?
Each page is rendered at 144 dpi and saved as its own WebP image, named page-1, page-2 and so on, and they download together as one ZIP. A single page downloads as one WebP file.
How much smaller is the WebP from a WK3 file?
WebP typically produces files around a quarter to a third smaller than JPG at similar visual quality, and far smaller than PNG, while text and lines stay clear.
Is my .wk3 file kept private?
Your file is uploaded over an encrypted connection, converted on our servers and deleted automatically within 24 hours. We never read, share or keep your files, and no account is needed.