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[[Category:File formats]]
[[Category:File formats]]
=== Overview ===
=== Overview ===
CIA stands for '''C'''TR '''I'''mportable '''A'''rchive. This format allows the installation titles to the 3DS. CIA files can compile a CXI for installation to either the SDMC or CTR NAND. CIA files can also compile .SRL files (format for DS(i) executable images) for installation to the TWL NAND of the 3DS.
CIA stands for '''C'''TR '''I'''mportable '''A'''rchive. This format allows the installation titles to the 3DS. CIA files can compile [[NCCH]] files for installation to either the SDMC or CTR NAND. CIA files can also compile .SRL files (format for DS(i) executable images) for installation to the TWL NAND of the 3DS.
An example .CIA can be downloaded [http://depositfiles.com/files/t93cpkb2g here] Credit: [[User:Jl12|Jl12]]. It includes a .cia file, the result of installation, some screenshots. Also I've decrypted/extracted everything, for those people who can't be bothered using ctrtool ;)
An example .CIA can be downloaded [http://depositfiles.com/files/t93cpkb2g here] Credit: [[User:Jl12|Jl12]]. It includes a .cia file, the result of installation, some screenshots. Also I've decrypted/extracted everything, for those people who can't be bothered using ctrtool ;)
The data is aligned in 64 byte blocks (if a content ends at the middle of the block, the next content will begin from a new block).
The data is aligned in 64 byte blocks (if a content ends at the middle of the block, the next content will begin from a new block).
The CIA format is capable of containing more then one CXI in the APP data, the TMD specifies the size of each CXI contained in the APP data. Generally it will only contain additional CXIs related to the main App CXI, which can hold the Manual and DLP Child. The CIA format could be interpreted as an installable variant of the [[CCI]] format.
The CIA format is capable of containing more then one NCCH in the APP data, the TMD specifies the size of each NCCH contained in the APP data. Generally it will only contain additional NCCH files (.[[NCCH#CFA|CFA]] format, such as the Manual and DLP Child) related to the main executable NCCH (.[[NCCH#CXI|CXI]] format). The CIA format could be interpreted as an installable variant of the [[NCSD|CCI]] format.
== CIA Header ==
== CIA Header ==