# Is there a way to read out code from old pde file?

**URL:** <https://discourse.processing.org/t/is-there-a-way-to-read-out-code-from-old-pde-file/32143>\
**Category:** Coding Questions\
**Created:** [September 7, 2021, 7:57pm UTC](https://discourse.processing.org/t/is-there-a-way-to-read-out-code-from-old-pde-file/32143 "2021-09-07T19:57:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tlow001](https://avatars.discourse-cdn.com/v4/letter/t/51bf81/32.png) [@tlow001](https://discourse.processing.org/u/tlow001)\
**Post date:** [September 7, 2021, 7:57pm UTC](https://discourse.processing.org/t/is-there-a-way-to-read-out-code-from-old-pde-file/32143/1 "2021-09-07T19:57:19Z")

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Hello  
I want to pick up processing again after years of inactivity, but when I open an old file I get an error:

 ![Schermafbeelding 2021-09-07 om 21.54.17](https://canada1.discourse-cdn.com/flex036/uploads/processingfoundation1/original/2X/1/14931c00c3b2629381c865230488251fd88dcdf4.png)  
I already tried to install an old veriosn of processing but I get the same result.  
Is there a way to get the code file from the pde file without running it so I can rebuilld it in the latest version?  
Thanks for any answers!  
Tim

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**Author:** ![Chrisir](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/chrisir/32/45_2.png) [@Chrisir](https://discourse.processing.org/u/Chrisir)\
**Post date:** [September 7, 2021, 8:19pm UTC](https://discourse.processing.org/t/is-there-a-way-to-read-out-code-from-old-pde-file/32143/2 "2021-09-07T20:19:21Z")

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pde is just a text file

you can open it with any editor, for example windows Notepad

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**Author:** ![CodeMasterX](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/codemasterx/32/2942_2.png) [@CodeMasterX](https://discourse.processing.org/u/CodeMasterX)\
**Post date:** [September 9, 2021, 4:47pm UTC](https://discourse.processing.org/t/is-there-a-way-to-read-out-code-from-old-pde-file/32143/3 "2021-09-09T16:47:16Z")

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didn’t know that! thank you!