It should be noted that this only support the MS Excel 5.0/95 format (.xls) file type.
The syntax and use is pretty simple for this tool, it has 4 inputs, the table path (string), out path (string), use field alias (Boolean and optional), and use domain and sub-type description (Boolean and optional). Let's dive into an example:
import arcpy
import os
if __name__ == '__main__':
table = r"c:\temp\scratch.gdb\StarbucksAddresses"
out_excel = r"c:\temp\starbucks.xls"
if os.path.isfile(out_excel):
os.remove(out_excel)
arcpy.TableToExcel_conversion(table, out_excel)
All we have done here is taken the simplest example and convert my list of Starbucks locations and converted to an excel spreadsheet so I can now use it in excel.
Enjoy
ArcGIS Tool help link - http://resources.arcgis.com/en/help/main/10.2/index.html#/Table_To_Excel/001200000054000000/