If a COUNTER file will not load correctly or merge successfully with other files, be sure to check the column names (your usage tool may even give you a specific error message). If there is a misnamed column or has a typo, it can derail the loading process. For example, you might get the following notification: Error: Unexpected column name in cell 3. “Platform” expected. “Platfom” provided. (Note the missing “r” in “Platform”).
If this happens, download the COUNTER report to your hard drive and fix the file using Excel or a similar product.