I am using a chromebook that i have just installed kde desktop in linux and i want to know if there is a way to open windows type files.
LO files created under Windows?
Otherwise if this is a generic question about ChromeOS capabilities, you are not on the adequate site.
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What kind of filetypes? *.doc, *.docx, *.docm, other?
Which Linux distribution? Try the forum of the Linux distro you installed.
You will need to install WINE if you want to open files such as .exe and .msi.