Check a File Exists

One of the most regular tasks I have to perform in VBA is working with other files. This is normally to copy data from or to put data into them. The most regular issue I face when doing this is the file is not where it should be, or where I expected it to be. This could be because I was given the wrong file path or someone moved or deleted it.

I put this function together so I could quickly and easily check if the file exists before trying to work on it.

To use it, you pass the file_path argument the file you want to check, and it will return TRUE or FALSE. If it returns FALSE I exit my programming in a controlled way (i.e. display an error message or ask the user to reselect the file).

Function DoesFileExist(file_path As String) As Boolean
    ' Purpose -->       Checks to see if a given file exists or not. If it
    '                   it exists TRUE is returned, if not FALSE is returned.
    ' Arguments -->     file_path (String)
    '                   - Holds the path to the file to check.
    ' Returns -->       (Boolean)
    '                   - Returns FALSE by default
    '                   - Returns TRUE only if the given file exists
    ' Created by -->    Carl Nixon,
    ' Set up variables
    ' ================
    ' Holds if the file is found or not
    Dim result As Boolean
    ' Holds the name of the file found when looking for the file
    Dim found_file As String
    ' Set result to FALSE as a default
    result = False
    ' Check it is safe to continue
    ' ============================
    ' No folder path given so exit
    If Trim(file_path) = "" Then GoTo Finished
    ' Check if file exists
    ' ====================
    ' Search for the file using DIR
    found_file = Dir(file_path)
    ' If a file was found set the result to true
    If found_file <> "" Then result = True
    ' Finish up
    ' =========

    ' Return the result
    DoesFileExist = result
End Function

All of the code featured on this site is available to download on my GitGub page. Click here to visit it.

Carl Nixon

Carl Nixon is a VBA developer with 20 years experience, 10 years as a freelancer. He has worked for clients around the world, ranging in size from micro businesses to global brands. In his 20 years developing VBA projects he has helped businesses to automate and simplify processes, resulting in massive time and money savings. He is also the author of 3 top selling books on Excel. Visit my LinkedIn profile or my GitHub page

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