.dat — Generic Data File
A catch-all extension used by countless different applications for their own custom data. There's no single standard format behind '.dat' — what it contains, and which app can open it, depends entirely on whatever program created it.
A generic or catch-all format. What it can actually do depends entirely on the application that created it — treat it with the same caution as any file from an untrusted source.
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Frequently asked questions
What is a .dat file?
A catch-all extension used by countless different applications for their own custom data. There's no single standard format behind '.dat' — what it contains, and which app can open it, depends entirely on whatever program created it.
Can I edit a .dat file?
Not directly as text — .dat is a runnable or packaged format, not one meant for manual editing.
Does having a .dat extension mean the file is safe?
No single extension can guarantee that. A generic or catch-all format. What it can actually do depends entirely on the application that created it — treat it with the same caution as any file from an untrusted source. Always consider where the file came from, not just its name.