#include <File.au3>
#include <Excel.au3>

Opt("MustDeclareVars", 1)

Global $oExcel, $sFilePath, $Default_Folder, $File_Type
Global $Result, $sDelimiter

$oExcel = _Excel_Open()
$sDelimiter = @Tab
$Default_Folder = @DesktopDir
$File_Type = "Text (*.txt)"
$sFilePath = FileOpenDialog("Find File", $Default_Folder, $File_Type, $FD_FILEMUSTEXIST)
If $sFilePath = "" Then
		MsgBox($MB_ICONWARNING, "Error", "No file chosen")
		Exit
EndIf
$Result = _Excel_BookOpenText($oExcel, $sFilePath, $sDelimiter)
; $Result = _Excel_BookOpenText($oExcel, $sFilePath, $iStartRow = 1, $iDataType = Default, $sTextQualifier = $xlTextQualifierDoubleQuote, $bConsecutiveDelimiter = False, $sDelimiter = "'", $aFieldInfo = "", $sDecimalSeparator = Default, $sThousandsSeparator = Default, $bTrailingMinusNumbers = True, $iOrigin = Default)