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1. Access a sample and composition.

2. To add a file, click the Composition File tab or the All tab and scroll to the Chemical Association section.

3. Click Add next to Chemical Association.

4. Upload, browse for , and select the file or enter the file's URL where the document is located.
5. For the file to be added, complete the Complete the following.
   
   1. Select the File Type (required), Document, Graph, Image, Movie, or Spreadsheet.
   2. Enter the File Title (required).
   3. Specify Keywords to associate with the file
   4. Enter a Description of additional information of the file.

6. Click Submit to add the file(s) to the sample.

   Tip
   title Editing and Deleting a File
   Once you add a composition file, you can remove the file or edit the composition file information. To delete a file, click Edit and on the Edit Composition File page, click Delete. To update the file information, click Edit and on the Edit Composition File page, make the changes and click Update. The list of files is updated.

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