Can't open .ZPR files anymore

#1

I worked on a project for hours now. I save every hours my works in .ZPR, and zbrush launch an autosave every 10 mins. But since I closed zbrush, I can’t open my files in .ZPE anymore. The autosaves neither. Each file has a great weight, like 190mo etc… But when I launch it, zbrush launch a blank document with only the simplebrush selected, like that :

instead of launching my document. Anyone has an advice to correct that ? ( I tried on an older zbrush version, and on a different computer, I have no clues how to fix this )

#2

click the simple brush icon and when the window flys open take a look to see your saved tools.
that format save everything in tools so if the the file is to large then delete the tools your not needing
tool>subtool>delete

you may need to prefrances >mem>compact memory before you open the file,
if you get it open delete the tools that are eating up your file size.

you may need to give some one that file that has better computer spec
then let them delete what you dont want and re save it