Files in Windows that are saved to large installation CD-ROM drives are compressed with the extension "EX_" nomenclature. The file denotes a compressed file that can be expanded using the "expand.exe" command in the DOS command prompt. The files are compressed to fit on a CD-ROM and expanded during installation. However, you can manually decompress these files through the DOS console.
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Click the Windows "Start" button and select "Run." Type "cmd" in the text box and press "Enter."
Type "cd <directory>" to navigate to the location of the compressed file. For instance, if you want to navigate to a file named myexe.exe in the "C:\mydir" directory, type "cd mydir" and press "Enter."
Type "expand <myfile> <mylocation>" in the command prompt. The expand.exe is an internal command in the Windows operating system that expands the compressed files. For instance, if you have a file named "myfile.ex_" and you want to decompress the file to a directory named "c:\myexpandedfile" then enter this command: expand myfile.ex_ c:\myexpandedfile\myfile.exe
Type "cd..". This returns you back to the "c:\" directory. Type "cd myexpandedfile" to navigate to the directory containing the newly decompressed file.
Type "dir" in the command prompt. You should see your file in the directory list.
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