We generally cannot manually upload files for you on an ongoing -even temporary- basis. What we can do is provide you with the credentials for the sFTP server associated with your datafeed. Then you can connect to the sever and manually upload the file to the incoming folder.
Please note: your datafeed only runs on a set schedule, so you should only do this when working in conjunction with Technical Support.
Warning: Incorrectly formatted files or files missing data can break your entire user base. Again, only do this when working in conjunction with Technical Support.