What Is XLSB File extension

XLSB file extension  is an Excel Binary Workbook file. Excel Binary Workbook files store information in binary format instead of the XML format like with most other Excel files. Since XLSB files are binary, they can be read from and written to much faster, making them extremely useful for very large spreadsheets

Not able to drag page breaks in Page Break Preview in Excel

Not able to drag page breaks in Page Break Preview in Excel

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This problem may occur when the Allow cell drag and drop check box on the Edit tab of the Options dialog box is cleared. 

To work around this problem in Microsoft Excel 2000, in Microsoft Excel 2002, and in Microsoft Office Excel 2003, follow these steps:

1. On the Tools menu, click Options.
2. On the Edit tab, click to select the Allow cell drag and drop check box, and then click OK.

Follow these steps:

1. Click the Microsoft Office Button, click Excel Options, and then click the Advanced tab.
2. Click to select the Enable fill handle and cell drag-and-drop check box, and then click OK.