diff --git a/README.md b/README.md
index 77ef2f2..e53e357 100644
--- a/README.md
+++ b/README.md
@@ -445,6 +445,7 @@
 * [**Rust**: _Building a DNS server in Rust_](https://github.com/EmilHernvall/dnsguide/blob/master/README.md)
 * [**Rust**: _Writing Scalable Chat Service from Scratch_](https://nbaksalyar.github.io/2015/07/10/writing-chat-in-rust.html)
 * [**TypeScript**: _Tiny Package Manager: Learns how npm or Yarn works_](https://github.com/g-plane/tiny-package-manager)
+* [**F#**: Write your own Excel in 100 lines of F#](http://tomasp.net/blog/2018/write-your-own-excel)
 
 ## How to contribute