Preservation policy

The E-LIS policy for preservation of documents is:

• All materials posted in the E-LIS will be retrievable but E-LIS strongly recommends authors to use PDF and HTML.
• Supported means that the E-LIS will make usable in the future, using whatever combination of techniques (such as migration, emulation, etc.) is appropriate given the context of need. Not all proprietary formats can be supported. These files will still be preserved. It is likely that for extremely popular but proprietary formats (such as Microsoft .doc, .xls and .ppt), E-LIS will be able to help make files in those formats more useful in the future.

E-LIS will fully support and preserve the following formats using either format migration or emulation techniques: (supported: we fully support the format; known: we can recognize the format, but cannot guarantee full support)

Description	Extensions	Level
Adobe PDF	pdf	Supported
HTML	html, htm	Supported
Microsoft Word	doc	known
Microsoft Powerpoint	ppt	known
Microsoft Excel	xls	known
Text	txt	Supported