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Developed by SubWallet, this offline tool can be used to export accounts on Polkadot-SDK networks from a Ledger device using seed phrases.

This tool is not associated with Parity or Ledger. Use at your own risk.
Entering the seed phrase of a Ledger device onto a computer contains the risk of compromising it. We recommend using this offline tool on an air-gapped computer or one that is not connected to the Internet.
After funds are recovered, you should move all your funds from all accounts on your Ledger away and reset your Ledger with a new seed phrase.

Download the tool from this link
Turn off your Internet connection
Extract the folder from the downloaded zip file and open index.html
Open the file in a browser (such as Chrome)
Select the network of the Ledger account, enter the seed phrase, and account address
Click Export JSON file, and create a strong password to protect the JSON file
Import the JSON file into SubWallet and recover the funds by sending all tokens to another account