What are suitable or open file formats for OER?

Make your educational material available in as open a file format as possible by choosing easily editable and versionable file formats when saving. This makes it easier for other teachers to reuse content.

3 Criteria for open file formats are:

Open standard: Materials with an open standard are easy to edit, as most files can be opened and adapted using open source software and no proprietary software needs to be purchased.

Editability: Editable file formats allow direct adaptation and further development of the materials. See below for examples (however, a PDF, for example, can only be edited with difficulty).

Versionability: Versionable file formats make it possible to document, trace and even easily undo all changes made to the material.

Formats that fulfill all three aspects are, for example: .csv, .txt, .tex, .html, .md, .svg. Common formats that fulfill one point less are, for example: