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Sep
15
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I’m not sure quite why people that make operating systems think that we’re all too stupid to understand what a file extension is, we need to know these things and sometimes we need to change the file extension but both Windows and Mac users have file extensions hidden by default. Here’s how to change this in Mac OS X 10.6, Snow Leopard…
1. Select Finder > Preferences…

2. Then tick the ”Show all filename extensions” on the Advanced tab.

3. Quit the Preferences pane any you’re done.