> For the complete documentation index, see [llms.txt](https://docs.crossfimain.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.crossfimain.com/english/announcement/let-the-countdown-begin-1.md).

# Let the countdown begin!

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Let the countdown begin!<img src="https://abs-0.twimg.com/emoji/v2/svg/1f525.svg" alt="🔥" data-size="line"> CrossFi Swap Opportunity (CSO) is a 1-day-only Swap-and-Burn event that allows participants to witness earn liquidity and profits as an investor in CrossFi. Barter your CRFI tokens for cFILs (1:1 pegged synthetic filecoin) and earn amazing interests