DIGITS trading use Excel file for labeling

Hello,

Is it possible to use an Excel file for labeling? I have 6 million images whit bounding box information in an excel file, converting them to text send infeasible, too much information lost.
I’d like to have DIGITS use on Excel whit validation and one whit training, it needs to go thru all rows at training to see if one picture has more than 1 bounding box.

I’d expect this to be a function as text files are not a common way to handle large sets of data?