Welcome @Paul_Wolfe
Yes, this is how the display works. The “columns” are labeled for you are a separate display, but what is inside is the actual file. So: the blue bar is for display clarity, then the plain text is your data. These will usually be numbers if there isn’t a header line in your data, or it may be metadata labels from a specific file type such as a bed file.
The topic here discusses with more details, but for a tabular format → Use first row as header - #2 by jennaj
With some tools you’ll be able to input csv and Galaxy will do a conversion to tabular for you at runtime. For more control, or if you get an error, try converting to tabular yourself first (using the pencil icon) then maybe check to make sure the fields are as expected (no blank trailing columns).
Does this help? We can follow up more. 