[Q] .xap file format - Windows Phone 8 Q&A, Help & Troubleshooting

Hi, guys
Does anyone knows where I can find a specification about the file format of .xap file, there are some guys saying that the xap file is a zip, but sounds it is not true, according to the xap files I downloaded from Windows App Store, the magic word of the xap at the beginning is "PRE"...
Any comment will be appreciated.
Thanks in advance!

XAP Files are Zip-Files. Your Problem is that when they are submitted to the Marketplace they are encrypted to avoid piracy. If you rename a regular XAP file created by Visual Studio to .ZIP you can open it and browse it. If you donwload it from the Marketplace you can't do anything with it.

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Is the installer in the form of a .cab file? I'm willing to bet that you're opening the CAB file on your PC and looking inside it, which isn't the way to go here. You're supposed to copy the entire CAB file across onto your phone then launch the CAB file from your phone to run the installer.

After Downloading @ HD7 where can I find download flie?

Hello,
I would like to know how can I find the downloaded files in HTC HD7 with WP7?
I have downloaded files from my hotmail.
It says downloading when download is finish,I can't open the file.
WP said Can't open attachment.
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i think that file can't be accepted with wp7.
yes Ttblondey ,
I am trying to install .ttf , wp7 can't accepted.
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I have chance to move to Windows\Fonts folder
The system does not work that way. Once you download an attachment, it gets stored by Outlook in some encrypted, hidden file somewhere that can only be accessed through the e-mail app. If the phone can't read it, then you are pretty much out of luck.
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A
Sent from my GT-I9000
Thank for all your advice.
I attached as a txt file to hotmail.
It saved as to the office hab. By using TouchXplorer, I found my text file under Document Folder. I changed file extension to .ttf.
Copy & paste at Windows\Fonts
can't do yet to change fonts in WP OS , still trying

[REQ] LIRR or PATH NY-NJ XAP

Could someone extract the XAP of application LIRR or NY-NJ PATH?
I am not able to download it via store.
Thanks

[Q] How to extract a .xap file and view its contents ?

hello...
can anyone guide me how to extract an .xap file and view its contents ?
tried renaming the extension but that didnt work, so need some expert advice to solve this...
THANKS
Until a dev responds with the proper answer, I've found this by searching : http://www.solvusoft.com/en/file-extensions/file-extension-xap/
frosty.furious said:
hello...
can anyone guide me how to extract an .xap file and view its contents ?
tried renaming the extension but that didnt work, so need some expert advice to solve this...
THANKS
Click to expand...
Click to collapse
XAP file is simply a zip file, so open with Windows Explorer or WinZip, WinRar, etc..
Well, unless it's a .XAP from the store. Then it's a Windows PlayReady container full of DRM-encrypted data which *probably* decrypts to ZIP format (but might not).
We can't open those at this time (except by having the phone install them, obviously).
anaheiim said:
XAP file is simply a zip file, so open with Windows Explorer or WinZip, WinRar, etc..
Click to expand...
Click to collapse
i couldnt do that so simply ?
did you try it anytime ?
LOL, yes, with 1200 posts (including possibly *the* most popular one on this whole forum section) and 850 Thanks, I'm quite sure @anaheiim knows of what he speaks.
You, on the other hand, are almost certainly trying to open a .XAP from the store, didn't read *MY* post for some reason, and also didn't do much searching or other forms of research before beginning. As I said, Store XAPs are encrypted with PlayReady DRM, and we don't currently know how to decrypt them.

[Q] How to decompile .XAP from Windows Phone Store?

Hi guys, is it possible to decompile an app installed from Windows Phone Store?
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Thanks.
.xap files is just zip files, but it's encrypted - you need a extractor, it will not work in normal .zip extractor eg. 7-Zip or WinRAR. It contains .exe and .dll files. Extract it, and you can use ILSpy or similiar tool for .NET applications or disassembler for C/C++ applications to decompile .dll and .exe files.

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