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How do we get information from an MFR reader and write it into a log file?

We are working on a project using an MFR 4100 reader with a serial port to read data from RFID tags into an Excel or text file.  So far, when we run our VI, the data from tags shows up fine on the front panel but shows up as garbage in the Excel/text file.  It also shows up as garbage when we probe the block diagram.  Does anyone have any insights on doing this?
Thanks,
Team LEAD
Smith College.
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 Here's a screen shot of our VI in case you can't view it.
Thanks,
Team LEAD.
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It would have been better to post your VI with the subVIs and with some data in the string indicator but since you are displaying the text in hex, my guess is that if you were to set it for normal (ASCII) display, you would see the same characters that you see with the probe and in the text file. Setting a display in LabVIEW does not change the data in the diagram. If you use String to Byte Array and write that to a file, you'll probably see what you want.
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