Karen Cheng decided to leave the world of Excel at Microsoft for Justin Kan’s new startup EXEC, and announces it via song.

While this isn’t an “official” resignation video, or a suggestion on how to resign from your job, it’s pretty awesome so have a look:

Here are the lyrics:

Long, long lines of code
It can take a while for Excel code to compile
I am glad I’ve had the chance
To make the cells and numbers dance, and maybe make some customers smile
But the time has come to close this chapter, beer and chips and hallway laughter
Feelin’ a little blue, I will miss my feature crew
Sound of typing and mouse clicks, taco Fridays in 36
Now it’s time for me to go
Goodbye, product studio

So Bye, bye Excel and I
It’s been 3 good years, oh how time has flown by
With devs in the hall drinkin’ whiskey and rye
Singin’ forever recalc or die, forever recalc or die

Together we made Excel 15,
And we bleed proud forever green, for the world’s calc machine
Gotta listen to my heart it knows
Time to shake up my status quo, I am hopping on a plane to San Francisco
The next time that I touch a spec will be at a startup called Exec
My PM days have expired, I’ve taken a job as a designer
My last day is the 24th, please see me for anything you need before
And after that don’t disappear, please do contact me here.

So Bye, bye Excel and I
It’s been 3 good years, oh how time has flown by
With devs in the hall drinkin’ whiskey and rye
Singin, Forever recalc or die.