Those files are backups, the highest number is the most recent version, the lowest number is the oldest.
You can rename or copy them to Default.wksp until you find one that works.
I highly recommend to not use one Workspace for everything. Use one workspace for each connection profile. Or even one workspace for each "topic" you are working one.
Marco Delgrosso schrieb am 16.01.2023 um 15:41:
> Hello Thomas, all
> since yesterday I can't open my workspace anymore.
> When I try to open it, the following error appears :
> The following error occurred when loading the workplace:
> zip END header not found
> Since I have been accumulating queries and DLLs for years, it would be a problem to lose this workspace.
> *Is there any way to fix it?*
> I have seen (C:\Users\xxxxx\.sqlworkbench) that there are also a number of backups on it.
> *Please help me!*
> Thank you