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have you gone into the Get Info section (by right-clicking on it) and checked whether it is locked, or tried removing the extension there and renaming it?<br />
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have you gone into the Get Info section (by right-clicking on it) and checked whether it is locked, or tried removing the extension there and renaming it?



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I need to save as or convert a .txt file into a .dat file format. &nbsp;I received a .txt file with some license activation code for a client software app. &nbsp;That app requires the file to be in .dat format. &nbsp;Mac OS will not let me remove the .txt extension when I rename the file x.dat (instead of x.txt).
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I need to save as or convert a .txt file into a .dat file format.  I received a .txt file with some license activation code for a client software app.  That app requires the file to be in .dat format.  Mac OS will not let me remove the .txt extension when I rename the file x.dat (instead of x.txt).

How do I convert a .txt file to a .dat file type on Mac OSX?

Mac OS X is the desktop operating system from Apple Inc., found on Macintosh computers. OS X consists of a Mach/BSD-based kernel, operating system interfaces primarily based on FreeBSD and additional frameworks (written in C, C++ and Objective-C providing user interface and application-level services.