Instructions. Open up an existing spreadsheet in Microsoft Excel 2007. If your spreadsheet has multiple sheets, activate the sheet you wish to convert. From the Office button, select Save As to open the Save As dialog box.Select Text (Tab delimited) from the Save As Type pull-down menu in the Save As dialog box.ave. While the Microsoft Excel is commonly used in business, it is not ubiquitous. Sometimes, users must convert the data in an Excel spreadsheet into a universally portable format that can be read by such simple text editors as Notepad. The way to do this is through the Tab Delimited Text save option.