#Vba determine file type how to#
#Vba determine file type windows#

'*.xl*', 1, 'Select Excel File', 'Open', False) VFile = Application.GetOpenFilename('Excel Files (*.xl*),' & _

#Vba determine file type how to#

The code below shows how to retrieve the extension of a file, define an array with allowed extensions, and match the extension of the file to the array.

Private Sub CmdOpenCopyExcelAnyVersioin_Click() VBA Check Extension of File When looping through all files in a folder, itвЂ™s often necessary to check the extension of each file, so you only mess with Excel files, for example.

If you COULD rely on the extension to be accurate, you would use something similar to this snippet: But therein lies the problem - you cannot know until you see that header whether the file is what its file-type says it is. The viewers and creation utilities would open the file to see the first several bytes, which include a file detailed structural header that tells you whether it was an. VBA extension are known as Visual Basic for Applications files, however other file types may also use this extension. To anyone/anything else, the file is just what UNIX and OpenVMS systems call 'STREAM' format - literally a raw stream of bits to be interpreted that the programs built for that type of stream. These attributes include permissions to see, open, read, alter the file and other permissions. The only thing that actually KNOWS how the file is structured is the utility that created it or 'viewer' utilities that can peek into it. Every file contains attributes which determine its use.

#Vba determine file type windows#

See, a Windows file is inherently unstructured with respect to the file system, unlike some files systems where knowing the file's type/extension tells you something about the file. Dim directory As String, fileName As String, sheet As. XLS - and I don't think that it is then at all possible to know what it is without opening the file to READ what its REAL file type is. First, we declare two variables of type String, a Worksheet object and two variables of type Integer. OK - based on reading your problem statement, it seems like you are saying your users might do something like a 'SaveAs' for an. Excel Details: You can write an excel VBA macro code to get the list of file names from a specified directory, 1 click on Visual Basic command under.