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create own file extension name

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Hi all, how can i create a file with my own extension filename? for examples:
i have a string variables word, Word='Matlab'
when i combine it with my own extension (let say .001) i want to get something like this, Word.001 (it will show: Matlab.001)
how can i do that?what function that can i use? thanks.

Accepted Answer

Amir Hamzah UTeM
Amir Hamzah UTeM on 27 Jun 2011
found it..i can use sprintf function.

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