Send numeric value in relative time format to text file

Hi, I'm trying to send a numeric value to a text file (.txt). However, this value must be in Relative Time format, which is displayed correctly in my front panel but not in my text file. The text file displays  it as an integer-.
I know that this can be achieved by sending a string instead of a numeric value, but the thing is, I'm sending other numeric values along with this one, which means ALL the data must be numeric in order for Labview to send it, since it does not seem to accept a polimorphic array of data.
Any suggestions?

Here the resaved Write to Spreadsheet File.vi for writing String arrays.
- Partha
LabVIEW - Wires that catch bugs!
Attachments:
Write To Spreadsheet File_String.vi ‏58 KB

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