When taking photos using a digital camera, their filenames will be generated automatically, without allowing the users to configure its format.
This is why it is a common action to rename one's pictures according to their preferences, usually adding the time or the name of a place in the filename.
When users need to process numerous images, they will be able to choose specialized applications that will manage all the files simultaneously.
This utilities can be used to handle pictures of various formats, without being restricted to a certain extension.
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