It may be possible that *.1pe files can be imported to TurboTax accounting software and used to prepare other tax return forms, including the *.tax13. No further information regarding this conversion could be found.
Convert TurboTax tax forms file to TurboTax tax return file.
We found 2 software records in the database related to .1pe to .tax13 file format conversion.
Microsoft Windows software - convert 1pe to tax13 on Windows
A tax preparation software developed by Intuit
Convert from 1pe file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned 1pe to tax13. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert 1pe to tax13 on OS X
Popular tax preparation software