Für Dateioperationen wird gerne auf die Scripting Runtime verwiesen. Es geht aber auch mit deutlich weniger Overhead.
Public Function ReadFile(sPath As String) As String
On Error GoTo AUSGANG
Dim lFileNr As Long
Dim sText As String
lFileNr = FreeFile
Open sPath For Binary As #lFileNr
sText = Space$(LOF(lFileNr))
Get #lFileNr, , sText
AUSGANG:
If lFileNr Then Close #lFileNr
If Err.Number Then Err.Raise Err.Number, Err.Source, Err.Description
ReadFile = sText
End Function
Public Sub WriteFile(sPath As String, _
sText As String, _
Optional ByVal bAppend As Boolean _
)
On Error GoTo AUSGANG
Dim lFileNr As Long
lFileNr = FreeFile
Select Case bAppend
Case False
Open sPath For Output As #lFileNr
Case Else
Open sPath For Append As #lFileNr
End Select
Print #lFileNr, sText;
AUSGANG:
If lFileNr Then Close #lFileNr
If Err.Number Then Err.Raise Err.Number, Err.Source, Err.Description
End Sub