How to get rid of a batch file issue?

How to get rid of a batch file issue?

Ah, DOS Batch files, brings back tons of memories. Anyway, this will most probably just be short as you have not even included in your post the exact batch file that you have created so that I will be able to at least check the coding and command if they are correct. Since it has come to this, then I will most likely have to provide you with most of the possible answers.

1. In your batch file, did you indicate a certain length for the file extension? And did you use the asterisk sign or put in a wild card question mark (?) for looking for files? If you have provided the wild card, then please change it to the asterisk (*).
2. What Operating System are you using when you run the batch file? As sometimes, each OS has different ways of doing things in DOS. With that, regarding the issue with the XCOPY, I am assuming that you used the syntax /D:date for copying files from a certain date. If so, then did you for some reason indicate a file name to be copied, if not then try using this as the file name – *.*. 
3. Whenever you do any kind of file copying, especially if it is done in bulk then it is advisable to set the file name of the file to be copied to *.*, as such you are instructing DOS to copy all files. Since DOS by default only recognizes certain files with a pre-determined character length for the file name, if you did not indicate a file name DOS searches for files by the default programming, meaning all files that have 3 digit extensions. By providing the file name to be copied as *.*, it instructs DOS to look or copy all files regardless of the number of characters in the file name and regardless of the number of characters in the extension.

To provided you with a more exact solution to your problem, you might want to attach a copy of the batch file that you created for me to evaluate it and check to see what you got wrong.