title: How to drag and drop custom file using Cypress
body: <p>I'm currently working on doing a drag and drop file where I basically have a file format called BMPROJ which contains a JSON. However, the website works that it needs to drag and drop the file as a BMPROJ file to be able to accept it (A raw json would not work) and inside the BMPROJ it is just a simple json file.</p>
  <p>The reason I am writing here is that I have a code that is following together with using <a href="https://github.com/abramenal/cypress-file-upload" rel="nofollow noreferrer">cypress-file-upload</a>:</p>
  <pre class="lang-js prettyprint-override"><code>cy.get('.mod-view-3d').attachFile({
      filePath: 'C:/Users/MY-PC/Desktop/BOM/1BC475E2-7578-471A-AD23-K51H1528FH1.BMPROJ',
      encoding: 'utf-8'
  }, {
      force: true,
      subjectType: 'drag-n-drop'
  });
  </code></pre>
  <p>And what I want to do is to drag and drop the file <strong>1BC475E2-7578-471A-AD23-K51H1528FH1.BMPROJ</strong> however the error I do get is:</p>
  <pre><code>A fixture file could not be found at any of the following paths:
  
  &gt; cypress\fixtures\C:\Users\MY-PC\Desktop\BOM\1BC475E2-7578-471A-AD23-16ED72F30C1E.BMPROJ
  &gt; cypress\fixtures\C:\Users\MY-PC\Desktop\BOM\1BC475E2-7578-471A-AD23-16ED72F30C1E.BMPROJ{{extension}}
  
  Cypress looked for these file extensions at the provided path:
  
  &gt; .json, .js, .coffee, .html, .txt, .csv, .png, .jpg, .jpeg, .gif, .tif, .tiff, .zip
  
  Provide a path to an existing fixture file.
  </code></pre>
  <p>My question is - How am I able to drag and drop the file?</p>