I am trying to open a file with a Unicode file name for binary access to calculate the MD5 check sum. I have the file names and path stored in a excel sheet correctly.
File Names Used:
The code then fails atOpen sPath For Binary Access Read As lngFileNumber with 'Run-Time error'52': Bad file name or number
Function GetFileBytes(ByVal sPath As String) As Byte()
' makes byte array from file
Dim lngFileNum As Long, bytRtnVal() As Byte, bTest
lngFileNum = FreeFile
If LenB(Dir(sPath)) Then ''// Does file exist?
Open sPath For Binary Access Read As lngFileNum
'a zero length file content will give error 9 here
ReDim bytRtnVal(0 To LOF(lngFileNum) - 1&) As Byte
Get lngFileNum, , bytRtnVal
Close lngFileNum
Else
Err.Raise 53 'File not found
End If
GetFileBytes = bytRtnVal
Erase bytRtnVal
End Function
Any suggestions?
You can make the filename "acceptable" by converting it with the StrConv function. I tried your code with this modification:
Open StrConv(sPath, vbUnicode) For Binary Access Read As #1
...and the Open command ran successfully with my test filename abc✓✘.mp3. I can't say for sure if it would works with yours since you included them as an image, but it should be okay.
Unrelated:
The next line (Redim...) has a different problem for you to debug. (Perhaps you can't use LOF with this type of file? or maybe use FileLen instead?.)
More Information:
MSDN : Bad file name or number (Error 52)
CodeGuru : Opening unicode filenames in XP
MSDN : StrConv Function (VBA)
MSDN : LOF Function (VBA)
MSDN : ReDim Statement (VBA)
Related
Exported text files from Excel are encoded with UTF-8.
An encoding UTF-8-BOM is needed.
I think that in code shall be inserted a row, written like:
Java
?xml version="1.0" encoding="UTF-8"?
Jasperreport CSV UTF-8 without BOM instead of UTF-8
or
HTML5
meta charset="utf-8"
Bad UTF-8 without BOM encoding
Sub export_data()
Dim row, column, i, j As Integer
Dim fullPath, myFile As String
fullPath = "C:\Workspace"
row = 21
column = 5
For i = 1 To column
myFile = Cells(1, i).Value + ".txt"
myFile = fullPath + "/" + myFile
Open myFile For Output As #1
For j = 2 To row
Print #1, Cells(j, i).Value
Next j
Close #1
Next i
End Sub
How can I define and where to put a row, which defines encoding UTF-8-BOM?
Thank You.
Instead of Printing the file line by line, it might be more efficient to
save your selected range as a CSV UTF-8
you might need to change the file type after saving
Use ADO to process the file as UTF-8
Either will add a BOM automatically.
EDIT
If you are unfamiliar, you could perform the save to csv - utf8 process manually with the macro recorder turned on. Then examine what you have recorded and make appropriate edits.
Another way of adding the BOM, in the context of your existing code, would be to write it directly as a byte array to the first line.
For example:
Dim BOM(0 To 2) As Byte 'EF BB BF
BOM(0) = &HEF
BOM(1) = &HBB
BOM(2) = &HBF
Open myFile For Binary Access Write As #1
Put #1, 1, BOM
Close #1
will put the BOM at the beginning of the file.
You should then change the mode in your subsequent Print code to Append.
I suggest you read about the pros and cons of using Print vs Write
You should also read about declaration statements. In yours, only the last variable on each line is being declared as the specified type; the preceding variables are being implicitly declared as being of type Variant.
I am creating and saving .ini files in Excel. The files need to follow a specific naming convention that increments by 1 each time a file is created. Not all the files will be created in Excel, some will be done in a separate program. Is there a way to read the saved files in their folder to know which number is next?
For example there are files named exampleFile1.ini through exampleFile63.ini. From Excel using VBA or other means can I see that exampleFile63.ini was the last file and name the next exampleFile64.ini?
Thank you. I'm very new if thats not obvious.
This function will return the next available .INI file name:
Private Function GetNextFile() As String
Dim i As Long
Dim fileName As String
For i = 1 To 1000
' Update Path and File Name prefix below to where your .INI files will be stored.
fileName = "d:\path\exampleFile" & i & ".ini"
If Dir(fileName) = "" Then
GetNextFile = fileName
Exit Function
End If
Next
End Function
Call it like this:
Dim NextIniFile As String
NextIniFile = GetNextFile()
Background: I am extracting a file that is saved in a SQL database using an ADODB connection. One column of the database is the filename, including the file extension, and another is the actual contents of the file as a hex stream. I would like to save this file and open it.
Problem: This works fine with .pdf files. However, with .png files there is an error- the file is corrupted when I try to open it. I used a hex editor (HxD) and noticed that there were excess values. If I remove these the file opens fine. The hex stream should begin with the "per mille" character (Chr(137) in excel) in order for the file to open. I have not found a way to edit the hex stream in excel without converting it to characters.
The .png file opens with no problem when I take out the first few characters using a hex editor so that the file begins with:
‰PNG
Or the equivalent in hex code:
89 50 4E 47
The excess characters are
ÿþ
Or the equivalent in hex code:
FF FE
(I am trying to remove these). These characters are in the saved file even when I remove 4 characters from the text string using
Content = Right(Content, Len(Content) - 4)
It's almost like they automatically get added before the string when I save the file.
Code:
Calling the save to file function, where Content is the file content and Name is the filename:
Call StringToTextFile("C:\", rst![Content], rst![Name])
The function is below:
Public Sub StringToTextFile(ByVal directory As String, ByVal Content As String, ByVal filename As String)
'Requires reference to scrrun.dll
Dim fso As Scripting.FileSystemObject
Dim ts As Scripting.TextStream
Set fso = New Scripting.FileSystemObject
If Right(filename, 4) = ".png" Then 'recognizing the .png file
'Content = CByte(Chr(137)) & Right(Content, Len(Content)) 'unsuccessful attempt at inserting "per mille" character
'iret = InStr(0, Chr(137), Content, vbBinaryCompare) 'unsuccessful attempt at finding the "per mille" character in the content
End If
Set ts = fso.CreateTextFile(directory & filename, True, True)
ts.Write Content
ts.Close
Dim myShell As Object
Set myShell = CreateObject("WScript.Shell")
myShell.Run directory & filename 'Open the saved file
End Sub
When I try to insert the "per mille" character using Chr(137) it just shows a blank space in the hex editor.
Any help is appreciated!
This seems to be a similar discussion, but I am unsure how to apply this to my case:
excel-vba-hex-to-ascii-error
I am writing some code where I import some files under TMX (a form of xml).
I tried various options
a) using the Open FileName For input, but this messes up the character encoding
b) opening the file and copying the data using the msoDialog, but this return an error if the file is too large (which is often the case) and this put the data in an utterly messy manner.
c) opening the file using notepad, but there are the same limitations in so far as copying the entirety of the file into Excel as the previous option.
I am not trying to use a shell function calling onto Wordpad.
My issue right now, is that I need to copy the file line by line to treat its content according to my needs (hopefully without losing the character encoding
Would someone know how to copy every single line from the file opened in WordPad and paste it post treatment (selection of the relevant elements) into Excel?
Thank you
For large files you can use this solution:
Public Sub ImportTMXtoExcel()
Call Application.FileDialog(msoFileDialogOpen).Filters.Clear
Call Application.FileDialog(msoFileDialogOpen).Filters.Add("TMX Files", "*.tmx")
Application.FileDialog(msoFileDialogOpen).Title = "Select a file to import..."
Application.FileDialog(msoFileDialogOpen).AllowMultiSelect = False
intChoice = Application.FileDialog(msoFileDialogOpen).Show
If intChoice <> 0 Then
strFileToImport = Application.FileDialog(msoFileDialogOpen).SelectedItems(1)
Else
Exit Sub
End If
intPointer = FreeFile()
Open strFileToImport For Input Access Read Lock Read As #intPointer
intCounter = 0
Do Until EOF(intPointer)
Line Input #intPointer, strLine
intCounter = intCounter + 1
Worksheets(1).Cells(intCounter + 1, 1).Value2 = strLine
Loop
Close intPointer
End Sub
For other encodings you can use ADO's Stream as described in this solution:
VB6/VBScript change file encoding to ansi
If you have large files which require ADO's Stream then you might want to consider breaking down the large files first as described in this solution:
How to split a large text file into smaller files with equal number of lines?
The following website provides a tool which mimics the Unix command split for Windows in command prompt: https://www.fourmilab.ch/splits/
Before all, I want to say that I am not a programmer, so this may be basic for some people but surely not for me!!
The task that I want to accomplish is to retrieve some characters of a data file that is imported automatically from a server.
Data is stored in lines in a CSV or tabbed .txt file, each line consists of date and some numeric values. The format is always the same, only the file grows in one line each time a new value is entered.
What I need the script to do, is open that file (wich adress is known and constant) search for the last line, and then extract a string from that line and write it on a different .TXT file, from where I can import it to another specific software as a raw value.
The part in the middle (extracting string) is fairly simple, but opening and isolating the last line is far too much for me.
Thanks everybody for helping!
dim path
path = "fileName.txt"
otherOption(path)
function otherOption(fileName)
const read = 1
dim arrFileLines()
set objArgs = CreateObject("scripting.FileSystemObject")
if objArgs.FileExists(fileName) then
set objFile = objArgs.OpenTextFile(fileName,read)
i=0
do until objFile.AtEndOfStream
redim preserve arrFileLines(i)
arrFileLines(i) = objFile.ReadLine
i = i + 1
loop
objFile.Close
end if
wscript.Echo arrFileLines(i-1)
end function