XCI Splitter Windows

Split XCI images on Windows to isolate partitions for backups, testing, and modding; aimed at developers, technicians, and power users.

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About This Tool

XCI Splitter Windows parses Nintendo Switch XCI disc images to identify structural partitions and extract them into discrete files. It preserves the source as read-only during analysis and writes outputs to a user-specified folder.
Conceptually, it reads the XCI header, the partition table, and computes offsets and sizes for content blocks. It supports two modes: split by partition or split by fixed block size, and validates integrity with checksums while emitting a manifest.
The tool targets developers, modders, and technicians who manage Switch image assets, backups, or tooling pipelines. Its differentiators are strict adherence to XCI structure, robust error handling, and scriptable outputs (files plus a JSON manifest). It enables automations and repeatable prep workflows.
If input is not a valid XCI or contains unexpected partitions, the tool reports precise offsets and sizes and aborts safely, leaving the source untouched. Advanced users can enable verbose logging and optional checksum verification.

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How to Use

Provide inputs: select the XCI file and output directory.
Choose split method: by partition or by fixed block size and set chunk size if needed.
Run the process; monitor progress if verbose mode is on.
Review the output folder and manifest for accuracy.
Validate extracted partitions with checksum if enabled.

Frequently Asked Questions

Find Quick Answers

What formats does the tool support?

It accepts standard Nintendo Switch XCI images. It does not decrypt or repackage content; outputs are partitioned files with an accompanying manifest to aid further processing.

How is integrity verified?

SHA-256 checksums are computed for each extracted partition and compared against on-disk metadata or provided references when available. Any mismatch is logged in the manifest.

What happens if the input is not an XCI?

The tool validates the XCI header and partition table before processing. On failure, it aborts with a detailed error, and no output is written.

Can I customize split size or partitions?

Yes. You can select splitting by partition or by fixed block size and configure chunk size. If the XCI structure is unknown or varies, the tool attempts auto-detection where possible.

Is there support for Windows vs other OS?

Outputs are designed for Windows-based workflows and scriptable automation. The core logic is OS-specific for file IO; cross-platform tooling may require adaptation.

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