Windows 10: Can't change default app for .dat file extesnsion.
Discus and support Can't change default app for .dat file extesnsion. in Windows 10 Customization to solve the problem; Dear support team, I am trying to open .dat files but it is set to open with Power Media player for Dell. I tried to change it to notepad but it does... Discussion in 'Windows 10 Customization' started by Rabinchand, Jul 4, 2019.
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Can't change default app for .dat file extesnsion.
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