Rule 13

Avoid using non-alphanumeric characters in file names.

Different operating systems (e.g. Linux, OS X, Windows) have different file name requirements, in particular different characters that they do not recognise in file names. The use of these characters can cause problems. Even if your operating system allows you to save the file you may encounter difficulties if you try to transport the file to another operating system, for example the file may not be recognised, or if you send it to someone else they may not be able to open it. It is therefore recommended that you avoid the use of non-alphanumeric characters in file names

Avoid: * : \ / < > | " ? [ ] ; = + & £ $ , .

However, hyphens (-) may be used.

Rule 13 Example
	Correct	Incorrect
File name	SmithJohn20070507.txt DavidLaingCollection.rtf GuidelinesAndRegulations.pdf Budget2006-2007	Smith,John20070507.txt "DavidLaingCollection".rtf Guidelines&Regulations.pdf Budget2006/07
Explanation	Most non alphanumeric characters can be omitted without much loss of meaning, e.g. commas and quotation marks. Others can be replaced with alphanumeric characters, e.g. "&" and "+" can be replaced with "And" and "Plus". Hyphens can be used in place of forward slashes and brackets.

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