Apple's Mac OS X is similar to the Windows operating system in form and function, but with the release of 10.7.5 Lion, Mac OS began changing its computer operating system to act more like a mobile operating system. One change made it so that every time you open a program, your previous files and windows show up instead of a new, blank document.
Open a Mac app from an unidentified developer. If you try to open an app that isn’t registered with Apple by an identified developer, you get a warning dialog. This doesn’t necessarily mean that something’s wrong with the app. For example, some apps were written before developer ID registration began.
Behind the scenes, your Mac keeps a database of which programs are configured to open which types of files. When you open an image file, for example, Preview will likely launch to accommodate it.
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Navigate to your Applications folder and double-click TextEdit.
How To Open Mac Documents
Your TextEdit window opens.
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Press cmd+O.
The Open dialog appears.
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Navigate to the desired text file and double-click the filename to load it.
You can also open an existing text file by dragging its icon from the Finder window to the TextEdit icon.
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Navigate to the desired text file and double-click the filename to load it.
You can also open an existing text file by dragging its icon from the Finder window to the TextEdit icon.
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Click the insertion cursor anywhere in the file and begin typing.
Open Kmg File
To edit existing text, drag the insertion cursor across the characters to highlight them and type the replacement text. TextEdit automatically replaces the existing characters with those that you type. To simply delete text, highlight the characters and press Delete.
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Press Command+S.
Open Mac File Online
This saves your changes. Alternatively, you can save a new version by choosing File→Save As and typing a new, unique filename.