Dec 12th, 2008
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This little command line program was written by ElFarto for unpacking the Nexus files required foe modding. Along with the program, I've also included a page taken from the official Nexus forums detailing instructions in its use. Happy modding :)

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Mularac Dec 13 2008, 12:31pm says:

hey, I had a problem using it on Vista. Did you come across anything like that? (my problem: the program would show the extraction process, like it would normally do (I know how it works, I tried succesfully on windows XP) but in the end no folders were created. Opinions?

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Kirsah Author
Kirsah Dec 14 2008, 5:49am says:

Worked fine for me on my Vista 32-bit system, all files and folders where they're supposed to be. You didn't, by any chance, send it to the wrong drive or something minor like that did you?

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Mularac Dec 14 2008, 8:55pm says:

I don't think so... Anyway, did you ever wondered what is there on the other .dat and .dap files? Datool doesn't seem able to open them, and if there is a way it may grants us a better
understanding of nexus, and thus, a finer way to mod it.

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Kirsah Author
Kirsah Dec 16 2008, 2:10pm replied:

By the looks of things, DaTool was purpose written to unpack the one file I'm afraid. Although, if you know enough about this kind of thing, you can download the source code and try to modify it.

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Mularac Dec 25 2008, 8:24am replied:

the source code? you mean the engine?

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Kirsah Author
Kirsah Dec 30 2008, 6:37pm replied:

ElFarto also released the uncompiled text version of DaTool, currently available from SWAT-Portal (, Nexus section, I believe...

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deathoverking Apr 13 2009, 12:19pm says:

I had this problem also. To solve it, you have to run DaTool as administrator. This just do as you would normally do.

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dkbomb Oct 28 2012, 2:05pm says:

An easier way to run datool.exe is to creat a batch file in the nexus install folder. Edit it to read datool.exe x nexus_00.dat Avoids all command line mess.

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mevko Nov 25 2012, 9:48am replied:

works like a charm, thx for the idea :)

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