I am still trying to find the .tt18 file and open it to continue filing my tax return.

Can not open a file that I was entering. No access to the .tt18 file.

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As it very difficult to troubleshoot from this online forum, our Customer Support team will be better able to assist you with this. Please follow the instructions below to reach an agent who can assist you with this.

https://turbotax.community.intuit.ca/replies/3152013