I think PSF shared folders still have problems that have not addressed with the release of the latest GA code 2.5.3188. I appears the simplest way to recreate the problem is to open an existing excel spreadsheet from a mapped PSF drive. Then, immediately save the file. Excel returns the message:
"The file '<filename>' may have been changed by another user since you last saved it. In that case, what do you want
Save a copy
Overwrite changed
This problem has been around for quite some time. This problem does not occur when you use a samba share. I think Parallels has ignored this issued because of the samba "work around". That was ok a year ago but I would expect this problem to have been resolved by now.
"The file '<filename>' may have been changed by another user since you last saved it. In that case, what do you want
Save a copy
Overwrite changed
This problem has been around for quite some time. This problem does not occur when you use a samba share. I think Parallels has ignored this issued because of the samba "work around". That was ok a year ago but I would expect this problem to have been resolved by now.