I deleted some text from a document, and I realized it much later after, and I cant find the text, is there any way that I can find a previous version, in the dump files,
I saved the file after the text was deleted, so ctrl_z doesn't help.
No, but you can avoid this from happening in the future:
If you haven't closed the file or done a Save As you can Undo right back through a save to the point where the file was opened.
Retrieving data ...