We are pleasantly surprised seeing Zoho Sheet being put to use in quite a few ways. Mapz, a GIS librarian has used it to create a Wells in Arlington, Texas map. Mapz feeds his map with data from a Zoho Sheet that he maintains.
I exported the shapefile attributes into Excel format, and am using the Zoho API to allow users to view the attributes using Zoho. I love it that users do not need Excel on their computers. I am very impressed with how well Zoho works, even including the ability to create, edit, share, and even to create & include formulas!! For all you tagging junkies, you can even tag your spreadsheets.
Do you have any such interesting use cases of Zoho Sheet?