Picto thématique

Rule n° 142 - The format of the files available for download is indicated.

For a user, the fact of immediately seeing the format of a file offered for uploading (PDF, DOC, ODS, ODT, XLS, etc.) will enable him to know whether or not he can read the file with the software he is equipped with and the computer being used.

#Accessibility #Eco-conception #Links #Development


  • Let users know, in a timely manner, whether their tools will allow them to view the downloadable files.
  • Reduce server load by avoiding needless downloads.
  • Improve the accessibility of content for people with disabilities.


At the very least, provide a help page indicating the file format offered if it is unique.

Better, indicate the format for each link used to download a file.

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For each download link, check that it is possible to know its format using:

  • Generic information given in a help page;
  • Information given next to the link: paragraph orli listing element where it is included, title of the preceding section, table header cell associated with the relevant table;
  • The title attribute of the link taking and completing the caption of this link;
  • Information given in the wording of the link;
  • An icon with alternative text indicating the file format.

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