Skip to main content
Mitratech Success Center

Collaborati: How do I fix an Invalid File Format error message?/Convert UTF-8 to ANSI

Quick guide to changing your LEDES file encoding from UTF-8 to ANSI and saving.

This message occurs for LEDES98B and LEDES98BI v2 formats.  There are two main causes of this error: the ENCODING and the HEADER.

Check the ENCODING on your file by following these steps:

  • Open the file in a text editor such as "Notepad". 
  • Click "File" from the Menu bar, then choose "Save As"
  • The encoding for the file should appear near the "Save" button

If the encoding is UTF-8, please change it to ANSI, and then save your file.  Then try uploading the file again.  The attached document shows some screen shots.


Check the HEADER:  If the encoding is correct, please check the HEADER in your LEDES98B or LEDES98BI v2 file carefully as there could be a problem with the Header.  The Header (which is the first two lines of the file) must match the standard Heading for LEDES98B or LEDES98BI v2 (this information is available at www.ledes.org).

Process to change file format to ANSI

If you have a LEDES file saved in UTF-8 format, it will generate an error when loaded into Collaborati.

How do you know if your file is saved in UTF-8 format? Open the LEDES file in Notepad or a text editor.

The Encoding field displays the saved file format:


To fix this, resave as an ANSI file by choosing ANSI in the Encoding field: