Can i run libre spreadsheet executable without installing it?

It would open a very insterring application

Are you talking of COMPILING .ods > .exe (or into another executable)?
There are some compilers for Excel file formats which may also work with files exported from Calc into a non-native format. I don’t know any free one - and I dont know of a project inside LibreOffice for that.

Yes, you can download the portable version of LibreOffice from Portableapps here:

If you want to just unpack the installation set and run the binaries instead of a real installation, see

on how to do that.