How to repair a MuseScore file with a "bad format" error

Occasionally you may try to open a MuseScore file, only to get an error message like the following:

1a.png

Clicking on "Show details":

2a.png

One possible reason for the error is the presence of one or more "&" (ampersand) characters in the source code. To correct:

  1. Right click on the file, select a "Rename" option, and change the file extension from .mscz to .zip (Note: your system should be set to display file extensions);
  2. Right click on the *.zip file and select an Unzip/Extract option from the menu; extract the file to a convenient location;
  3. Locate the *.mscx file inside the generated folder and open it with a text editor (e.g. Wordpad, Notepad++, Vim etc.).
  4. Navigate through the lines of code until you come to the line and column error previously reported:

    54a.png

    Any lone "&" (ampersand) character (e.g. see image above) should be replaced with its equivalent XML entity reference—i.e. "&";

  5. Save the corrected *.mscx file and open it with MuseScore.

See also:

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