I may be missing something obvious, but is there a way to set or at least determine the order in which files are concatenated when using the "Concatenate files" task? I am using two file specs in the "Include file mask" field; can I rely on the files being concatenated in the order in which they match the specs?

Check out the file filter tab/then result tab. Check the sort box and you can sort by file name, modified date, created date or file size. Use the Test tab to see what the order will be. Do these options meet your needs?

Yes, I can work with that, thanks for the quick reply! Never noticed or used the Result tab before.

You bet, please reply back with your results.