I originally posted the question here: http://www.poi-factory.com/node/29790 but it may have been the wrong place to ask it.
Microsoft -> Filename is Invalid or Cannot Contain Any of the Following Characters
"A filename cannot contain any of the following characters: \ / : * ? " < > |"
For simplicity and to avoid issues with Linux or Apple, just use letters and numbers. Avoid the use of the space character too.
I'm currently replacing all non-word characters with an underscore. Is that a safe character or should I remove them as well?
That'd work quite well, but a concern, albeit a very small one, is that underscores tend to get lost in the translation when writing them down.
You can use _ ( ) - be careful with this one ~ it doesn't play well in excel.
My code uses this regular expression to replace everything: /\W|__+/ so I think I have my bases covered now.
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