| Sr# | Extension | Description |
|---|---|---|
| 1) | .xls | Excel 97-2003 Workbook |
| 2) | .xlsx | Excel Workbook |
| 3) | .xlsm | Excel Macro Enabled Workbook |
| 4) | .xlsb | Excel Binary Workbook |
| 5) | .xltm | Excel Template |
| 6) | .xltx | Excel Template |
| 7) | .xml | XML Data format |
| 8) | .xlam | Excel Add-In |
| Excel File Format Description |
|---|
| .xls |
|
The Excel 97 - Excel 2003 Binary file format. Cannot store Microsoft Visual Basic for Applications (VBA) macro code |
| .xlsx |
|
The default XML-based file format for Excel 2010 and Excel 2007. Cannot store Microsoft Visual Basic for Applications (VBA) macro code |
| .xlsm |
| The XML-based and macro-enabled file (Store VBA Code) format for Excel 2016, Excel 2013, Excel 2010, and Excel 2007. |
| .xlsb |
| The binary file format (Store VBA Code) for Excel 2010 and Excel 2007. |
| .xltm |
|
The macro-enabled file format for an Excel template Excel 2010 and Excel 2007. Stores VBA macro code |
| .xltx |
|
The default file format for an Excel template for Excel 2010 and Excel 2007. Cannot store VBA macro code. |
| .xml |
| XML Data format. |
| .xlam |
|
The XML-based and macro-enabled Add-In format for Excel 2010 and Excel 2007. An Add-In is a supplemental program that is designed to run additional code. Supports the use of VBA projects and Excel 4.0 macro sheets (.xlm). |