# Intro ## Supported formats Currently we only support the [ironcalc](https://docs.ironcalc.com/) xlsx features for spreadsheet. I plan to handle csv import and export at some point. I also might support other export formats as well but for the moment just csv and it's variants such as tsv are in the roadmap. ## User Interface The sheetui user interface is loosely inspired by vim. It is a modal interface that is entirely keyboard driven. At nearly any time you can type `Alt-h` to get some context sensitive help. ## Modal Docs To get help on each modality in command mode `:` type * `help navigate` * `help edit` * `help command` * `help visual`