This is not possible in EasyEDA.
It is unlikely that the PCB file is lost entirely.
Check:
[https://docs.easyeda.com/en/Introduction/Basic-Skill/index.html#History-Record](https://docs.easyeda.com/en/Introduction/Basic-Skill/index.html#History-Record)
and:
[https://docs.easyeda.com/en/Introduction/Basic-Skill/index.html#Document-Recovery](https://docs.easyeda.com/en/Introduction/Basic-Skill/index.html#Document-Recovery)<br>
<br>
In case you are using the Desktop version, please note:
[https://docs.easyeda.com/en/FAQ/Client/index.html#Known-Issue](https://docs.easyeda.com/en/FAQ/Client/index.html#Known-Issue)
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