Do you have the problem only on one part or is it recurring?
It sometimes happens that a family of parts is broken and we have to start it again, it rarely and randomly happens but it has already happened to us 2 times.
Otherwise if it's on all the families of parts you should try to create one to see if the defect is also found.
Hello, by any chance did you try to re-install office after the Solid update??? because during the update, could the links between Solid and office have been broken!?
I'm coming back to the XL file with sldprt extension. Is this file in the directory or is it only on display?
If it's in the directory, what happens if you open with SW?
If it's only on the display, it's when you modify the family table from SW that it appears? In which case (I don't guess, I can't test for now) maybe it's just SW that indicates that it's the file linked to the part?
I didn't reinstall Office, but the bug to start before the Solidworks SP3 update. I'll still see with the IT department to reinstall Office, it shouldn't hurt.
For the .sldprt file, it is indeed only the name it has on display, if I save as, it goes back to .xls, but I have 2 files of identical parts families waiting to be displayed in excel and which are still not displayed in SW.
the problem seems to be a link with Excel and solidworks. I also have custom properties in the Excel sheet, how can we check that they are not the cause of this problem?