ActiveX control file
CTL is a file extension for an ActiveX control file used with Microsoft Visual Studio. CTL stands for ConTroL. CTL files contain the source code for a Visual Basic User Control. CTL files store corresponding binary data in a CTX file. CTL files can be opened by a text editor and by Microsoft Visual Studio.
MIME type: application/octet-stream
Learn more about .CTL files:
Visit the Microsoft Visual Studio web page.
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