# Gplates .rot error message

**URL:** https://discourse.gplates.org/t/gplates-rot-error-message/882
**Category:** Q&A
**Created:** [22 May 2024 15:54 UTC](https://discourse.gplates.org/t/gplates-rot-error-message/882 "2024-05-22T15:54:38Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![chhei](https://discourse.gplates.org/letter_avatar_proxy/v4/letter/c/90ced4/32.png) [@chhei](https://discourse.gplates.org/u/chhei)
#### Post date: [26 May 2024 14:35 UTC](https://discourse.gplates.org/t/gplates-rot-error-message/882/6 "2024-05-26T14:35:53Z")

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@Lizzy

> I’m on windows and have gone through loads of options and googling to see how to change a notepad .txt to a .rot and haven’t found anything.

Unless I completely misunderstood what you’re after: If this only concerns the file suffix it is probably the easiest in Windows Explorer, with the file highlighted to hit `F2` (Rename) and instead of a `.txt` suffix, just use `*.rot` in there. Windows will likely complain but as you’re just changing the file suffix this doesn’t matter.

Otherwise the instructions above should explain how to set up a rotation file from scratch (both on Windows or Mac). As Windows’ built-in Notepad app sucks, I suggest to use something like [Notepad++](https://notepad-plus-plus.org) or VSCode (see link above).

Christian

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