This article may be out of date!
Visit the New Knowledge Center

Argument Error: Invalid Characters Found in the File. Please Ensure the File has Valid UTF-8 Encoding


  • Error appears when attempting to import a CSV file into Clio


  • Clio Manage
  • Microsoft Excel

Additional Information:



Clio uses CSV UTF-8 format for its Imports. If an Excel file is set up using a different format, Clio may be unable to read it. 


  1. Open the file in Microsoft Excel
  2. Click Save As
  3. Open the File Format drop-down menu
  4. Select CSV UTF-8 (Comma Delimited) (.csv)
  5. Click Save

If this issue persists, message us via Live Chat, or give us a call at 1-888-858-2546 ext 2, and we will be more than happy to take a look.

Was this article helpful?
This information is confusing or wrong
This isn't the information that I was looking for
I don't like this functionality