Opening csv-File via ADO-connection - Column Limitation to 255 / or just use another file type?

Question

I have quite a large csv-File (about 800MB) which I need to access from an Excel File via VBA (I am using Excel 2010) to run some calculations. Now I would like to avoid ope

Answer 1

3000 seems big, but there is a kludge:

Dim FileNum As Integer
Dim DataLine As String
Dim SplitData()


FileNum = FreeFile()
Open "Filename" For Input As #FileNum

While Not EOF(FileNum)
    Line Input #Filename, DataLine ' read in data 1 record at a time
    SplitData = Split(DataLine, ",")
    'Process big array
Wend

each row read of your data will be into field1SplitData(0) to field3000SplitData(2999) (zero based array)