Load a Workbook
To load a workbook, select the File tab, and click the Open button in the Common group.
In the invoked Open spreadsheet file dialog box, select the file you wish to open from your working directory.
The Spreadsheet supports the following file formats.
- Excel Workbook (*.xlsx)
- Excel Macro-Enabled Workbook (*.xlsm)
- Excel 97-2003 Workbook (*.xls)
- Tab-delimited Text File format (*.txt)
- Comma-separated Values File format (*.csv)