Thanks steve for your reply.
the situation is this...
I have xml files that I import everyday and when the file size is say 1kb,
the file structure doesn't match the destination table because the file is empty of data.
but when it is say 245 or even 16kb in size then it has data and hence the file structure matches the destination table.
I am just looking for a way to ignore the files that have a size of 1kb. something like that