You can open .DAT files that contain text, with text editors, like Notepad, Notepad++, VS Code, etc. But it is not possible to know what contains in a DAT file.

I wrote a program that generates fractals in visual basic. The way it currently works is that I pass the function a handle to a device context and it uses SetPixel to draw to that hDC.

It's easy to miss that you've opened a read-only file in Visual Studio: When you open a file you can't change, a tiny little lock icon appears on the tab of the editor window to the right of the ...

Launch Visual Basic 6 or Visual Basic Express. Open the project file in which you want to create a module and command button that creates an Excel spreadsheet from selected data.

How to Automatically Convert an Excel File to Text Using Visual Basic. Microsoft's ubiquitous spreadsheet application, Excel, is a useful tool for small and large businesses alike.