> 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!

<figure><img src="https://2454253789-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MbZMlY1zr6-eIn_VeR9%2Fuploads%2F6LFRUNuedseZatEfk2uB%2Fcd3.png?alt=media&amp;token=ef716e23-179e-410e-9599-b39fd0255e9a" alt=""><figcaption></figcaption></figure>

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