### 4.5.1 Opening a spreadsheet

You can open a spreadsheet (or a matrix editor) with the Spreadsheet▸New Spreadsheet menu item or with the key Alt+T.

When you open a new spreadsheet, you will be given a configuration screen. The configuration screen allows you to set the following options:

- Variable The name of the file where the spreadsheet will be saved.
- Rows and Columns The number of rows and columns in the spreadsheet.
- Eval Whether or not to automatically re-evaluate the entries in the spreadsheet after each change. If this is not checked, then you can re-evaluate the spreadsheet with the eval button on the spreadsheet menu bar.
- Distribute Whether or not entering a matrix into a cell will keep the entry in a single cell or distribute it across an appropriate array of cells.
- Landscape Whether the graphical representation of the spreadsheet should be displayed below the spreadsheet or to the right of the spreadsheet. If this is checked, it will be displayed below the spreadsheet.
- Move right Whether or not to move to the cell to the right of the current cell when data is entered. If this is not checked, you will be moved to the cell below the current cell.
- Spreadsheet Whether to format a spreadsheet or a matrix.
- Graph Whether or not to display the graphical representation of the spreadsheet.