What is this Excel button for?! (Pic included)

[SallyOMalley]

DS's homework ... Has a list of Excel buttons and needs to say what they do.

This one has us both stumped ... and I consider myself a fairly proficient user of Excel! DS has even gone through every toolbar on excel but to no avail.

Apologies for the quality of the pic .. but it's exactly as seen in his handout.

Any ideas, oh wise ones of Mnet?!

It's quite blurry but is it the one that converts figures into currency?

Currency.

Apparently, it's correct name is Accounting Number Format - see the Number section here: bettersolutions.com/excel/ribbon/home-tab.htm

I knew someone would know! Thank you! 👏👏

oof, its not it's

Ooh I got it right - very proud