It’s a small issue but I have to rename my tsv file extensions every time I want to import. Even Google Sheets uses tsv when exporting tab delimited files, so this is a standard extension.
Thanks so much for the great software. I have a few other small things that I will create separate posts for in the coming days.
Is it an option for you to just rename the .tsv file to .csv?
I just tried it here and then selected “Tab” as column separator in GarageSale’s import panel and it seemed to work pretty fine.