How do I create my own file extension?

Help please. In short: I need to create my own file extension, for example levelData.ldat, and so that only the program can access this file (read and modify it), but not the user in any case

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How do I create my own file extension? - C#

C#•17mo ago•

16 replies

уля03

How do I create my own file extension?

Help please. In short: I need to create my own file extension, for example levelData.ldat, and so that only the program can access this file (read and modify it), but not the user in any case