In a medium-size saucepan, over medium-high heat, whisk together the water and maple syrup. Bring the water/syrup mixture to a boil. Once boiling, reduce the heat to medium-low. Whisk the cocoa powder into the water/syrup mixture until the powder is fully dissolved. Simmer for 2 minutes.
The xltm file extension is associated with Microsoft Excel, one of the most popular and powerful tool you can use to create format spreadsheets, graphs and much more. The *.xltm files are used in Microsoft Excel 2007/2010 for template documents with macros enabled.
The .xlsx and .xlsm formats store almost all components of the workbook in XML format, i.e. specially formatted text. This makes it easy for other programs to read and even manipulate the contents of the workbook without having to start Excel. The .xlsb format stores the core components of the workbook in binary format. You need Excel to read and edit it. So the .xlsx and .xlsm formats are more open. For small and medium-sized workbooks, the difference in size and in reading/writing speed between .xlsx/.xlsm on the one hand, and .xlsb on the other hand, are not significant.