Jan,

The solution you are looking for cannot be done in version 4.X.  In version 6.X it can be accomplished.  This would be done by creating your same forEach loop and OUT tags without number formatting and type formatting and placing this in an Excel spreadsheet and saving in XLSX format (the current template format for AutoTag for MS Excel).  To save in this format if you are using MS Office 2003 you will need to download and install the MS Office 2007 Compatibility Pack located here:  Office 2007 Compatibility Pack .  To achieve the number formatting simply select the cells you want formatted in MS Excel and choose the formatting for the number output you desire natively in MS Excel.  You can add the native Excel SUM function by clicking on the SUM button and then selecting the cell of the tag whose values you would like to sum.  The template attached to this post demonstrates this.

    --Ryan