I rename my gan project in my laptop. i want to find the previous version
I don’t understand the issue, sorry. Did you just rename a file? Why do you need a “previous version”?
Anyway, if something wrong happened to your document and you want to recover a previous state, try using Help > Recover. It does not care about the file name – it will just scan through all available “autosave” files, from the newest to the oldest, and suggest recovering from them one by one.