Import docs on 2 sheets

I import a document from the desktop that way:

file-open-…then i choose it, and choose the file type.

When I do doc1 to the sheet1, and doc2 to the sheet2, (sheet2 is open at that moment) then doc2 comes to the SHEET 1!!!

What is the probolem???
Many thanks!

The information will get to the sheet from the one you selected the import function, no to the one that is open.

You can try opening the file explorer and right click the file “Open with”.