There are many ways to share documents, files and data over the Internet. Among them, emails are often used because people can communicate from one mail server1 to another without any difficulty. Why does it work so simply? Because emails are designed to use a set of open standards2, based on the Internet protocols.
However, sometimes people send attachments along with their emails, and it happens frequently that the attachments cannot be read by the recipients. For example, many attached files are documents produced by word processors and it can be impossible to read them correctly if you do not have the same word processor. Many proprietary word processors use proprietary file formats3. In 2002, a campaign was started to put an end to Word attachments. But the same is true for all kinds of documents and files: texts, spreadsheets, slides, videos, etc.
When you attach a file to an email, please make sure that your correspondent will be able to read your files correctly. It is a basic principle of courtesy. And there is an easy way to make this possible: use open standards. If you do so, your correspondent will have the possibility to choose which program he or she wants. Open standards guarantee sustainability and interoperability for your data, making sure you will be able to access them in the future, even with another software, on another platform or operating system.
Moreover, by promoting open standards you will help everyone: sharing documents can be as easy as sending and receiving emails! If you receive an email using proprietary file formats, don't hesitate to share this page and explain why it is important to use Open Standards.
On Document Freedom Day, the FSF started a campaign to call on computer users to start politely rejecting proprietary attachments.
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