# File Tab

## Content

The **File** tab has options for opening and saving files as well as default templates.

![image](https://gcdocumentsitekrblob.blob.core.windows.net/document-site-files/images/d37fbce1-6a37-43ce-b728-dd79fba68421/image.22e4fb.png?width=550)

You can use the **Save** option to save to a JavaScript (.js) file. This file type can only be loaded with the [fromJSON](/spreadjs/api/v17/classes/GC.Spread.Sheets.Worksheet#fromJSON) method.