Can you import your list of numbers into Excel?
Here is a basic step by step:
1. If you do not have any bar code fonts on your computer, download one from Dafont.com or some other resource.
2. Install the font on your computer.
3. Populate Column A in Excel with your list of numbers.
4. In column B, cell #1 - type in this formula
="*"&A1&"*" (this will append whatever number is in Cell A1 with an asterisk at the beginning and end of the number. Ex: If A1 is 987654 then B1 will now read *987654*)
5. Duplicate this formula for all of Column B. (Click cell B1, then place your cursor over the bottom right corner of the cell, hold left mouse button and drag the length of Column B)
6. Now that Column B is populated with the appended data from Column A, simply select the entire column and change the Font from the default of Calibri to whatever the name of the barcode font you installed.
Attached is an example of the finished result.
http://gwooop.com/images/signs101/barcode%20excel%20example.pdf
This may not answer your question directly but hopefully will be of some use to others who want to generate bar codes.