Convert any Excel .xlsx or .xls file to a clean CSV instantly using SheetJS in your browser. The first sheet is exported as CSV — no upload, no account required.
Frequently asked questions
Is this free?+
Yes — 100% free, no sign-up.
Which sheet gets exported?+
The first sheet in the workbook is exported as CSV.
Does it work on iPhone?+
Yes — all modern browsers.
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Chandraketu Tripathi
Finance Editor · Kaeltripton.com
Chandraketu (CK) Tripathi, founder and lead editor of Kael Tripton. 22 years in finance and marketing across 23 markets. Writes on UK personal finance, tax, mortgages, insurance, energy, and investing. Sources: HMRC, FCA, Ofgem, BoE, ONS.
