Display data on gridview from ftp

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C#

ASP.NET

Hello there,
i have too many files on ftp server which i want to display in data gridview without saving or downloading and im not sure how to do that. these files are .qrt but i can open them in excel or notepad.
i did that but from sql db but never worked with ftp
these files are has names with dates.

im using asp.net web forms in C#.

any idea how can i do this.
many thanks in advanced

What I have tried:

i couldn't figure out any way to do it