> For the complete documentation index, see [llms.txt](https://bitpicky.gitbook.io/sheetwork/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bitpicky.gitbook.io/sheetwork/faq/do-i-need-to-list-all-the-columns-in-my-sheets-config.md).

# Do I need to list ALL the columns in my sheets config?

No! You don't have to. You can leave the columns part empty and **you only need to add a column if you need an operation like** [**type casting**](broken://pages/-M5HOWT5YmZGPC8V9Exs#data-type-casting) **or**[ **renaming**](broken://pages/-M5HOWT5YmZGPC8V9Exs#column-renaming) **to happen.**