Perhaps I hadn't uploaded the updated file because it is incrementing the file name now.
I found the Restrict Content sb and the Restrict Content option. For Server Variable I clicked the lightening bolt and then selected the lightening bolt with Upload field name from my form.
Next I clicked on the + below the Server Variable in the dialog box but don't see how to "set it to restrict the space and use the includes type."
I went to the help file at wa_fv_62.html but not finding what I need there either.
Can you give me more detailed instructions on how to do this? Sorry but it's all new to me.