This file is in 2019v but properties show it is in 2020v. How to fix it? it was not the case before. I came to know because I am able to open it in SWX 2019v.
That’s a Windows thing. Last associated program installed to .SLDPRT.
Just open you file using SW2019 and all is well.
If you want any .SLDPRT file to open with 2019 instead of 2020 then you must associate that extension with the correct SW version. In Windows Explorer, RMB and select open with. Navigate to SW 2019 and make sure always use this program radio button is checked.
In File Explorer you can turn on a column that shows the last version a file was saved in. That being said when you want to open a file you will know what version it is in.
This is what in my computer
That’s what happen with multiple versions of SW on same computer.
You can try change the “open with” default in Windows Explorer.
Set it use Solidworks Launcher but it’ll open files with latest version of SW.
Thanks
Suppose you want find out the version of a SWX file from it’s icon. Is there any way to find out that?
Right-click on the column name space in File Explorer and choose “More” from the drop-down.
Choose “SW last saved with”, and click Okay.
@Glenn Schroeder
With a *.sldprt file this drop down menu does not come.
Oddly enough, I always have trouble with the SW Last saved with
Life will be much easier if we could just read the version using a text editor 
Hello Maha, what you show in the screenshot is what you are opening it with, not what version the file actually belongs to. You can use the solutions others have provided to see which version a file is saved on.
The menu is from file explorer, not the solidwork file
Try rightclicking on the column header in file explorer
image.png
Use the real interface, less glitchy(The property window)
It does, in Detail View
SW-LastSave-01.jpg
I didn’t say right-click on the file name. I said “. . . on the column name space in File Explorer”. Right-click where you see the red star in the screenshot below and in my original reply.
image.png
Isnt it should be the same? Since it is reading from the same property…
Even with the real interface it still show me as future version :X
image.png
One thing that i recall is that someone actually suggest using API to check for the version
http://help.solidworks.com/2021/english/api/swdocmgrapi/solidworks.interop.swdocumentmgr~solidworks.interop.swdocumentmgr.iswdmdocument~getversion.html
I just realized that I had asked a similar question in the past
https://forum.solidworks.com/thread/246378
This was last saved in 2019sp5…but doesn’t show anything when I display the column.
image.png
I don’t know why but sometimes the panel doesn’t display the right things, as if it hadn’t updated or something.
File versions are not service pack bound, so you will only have the year displayed, like this, though it’s rather odd for you that it’s displaying nothing at all. Maybe it has to do with the “default program” for the file type?
