How to Open .Bac File

BAC is a file format that was used by an application called Avantrix Backup Plus to store backed-up data. However, Windows Vista and Windows 7 cannot support this application, so you cannot use it to open BAC files. Fortunately, you can change the file extension on a BAC file from .bac to .zip, and then use a file decompression tool to view its contents. Here is the instruction.

 

1. Click “Start,” enter “Show or Hide File Extensions” and press enter.

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2. Keep the “Hide Extensions” option unchecked.

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3. Change the BAC file extension to .zip and press enter.

5. Download and install a file decompression utility such as WinRAR

6. Open BAC file with the compression utility you download to view the contents inside the BAC file.

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