Dim FileSystemObject As leSystemObject ' microsoft Shell Controls And Automation. Dim ShellApplication As Shell Set FileSystemObject new leSystemObject Set ShellApplication new Shell #Else Dim FileSystemObject As Object Dim ShellApplication As Object Set FileSystemObject CreateObject leSystemObject Set. Const CabExtensionName As String "cab" Const CabExtension As String "." cabExtensionName ' extension of a cabinet file holding one file only. Const CabExtensionName1 As String ' extension for a disk directive file for makecab. Const DdfExtensionName As String "ddf" Const DdfExtension As String "." ddfExtensionName ' custom error values. Const ErrorPathFile As Long 75 Const ErrorOther As Long -1 Const ErrorNone As Long 0 ' maximum (arbitrary) allowed count of created cabinet versions.
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Faster, but larger report file size. ' If True, use lzx compression. Slower, but smaller file size. ' ' Path and Destination can writing be relative paths. If so, the current path is used. ' ' If success, 0 is returned, and Destination holds the full path of the created cabinet file. ' If error, error code is returned, and Destination will be zero length string. ' ' early binding requires references to: ' ' Shell: ' Microsoft Shell Controls And Automation ' ' leSystemObject: ' Microsoft Scripting Runtime ' '. Cactus Data Aps, cph. ' public Function Cab( _ byval Path As String, _ Optional byref Destination As String, _ Optional byval overwrite As boolean True, _ Optional byval SingleFileExtension As boolean, _ Optional byval HighCompression As boolean True).
' SingleFileExtension: ' (Optional) ". style or london (default) ".cab" file extension. ' If False, the created cabinet file extension will be "cab". ' If True and source file's extension's last character is not an underscore, ' the created cabinet file extension will be named as the source file, ' but with an underscore as the last character. ' In both cases, a specified Destination filename will override this setting. ' HighCompression: ' (Optional) Use standard compression or high compression. ' If False, use standard mszip compression.
Cab This estate is the full function: ' compress a legs file or a folder to a cabinet file/folder. ' ' a single file will be compressed to a file with a ". extension by default, ' optionally with a ".cab" extension. ' a folder will be compressed to a file with a ".cab" extension by default, ' optionally with a custom extension. ' ' parameters: ' Path: ' Valid (UNC) path to the file or folder to compress. ' Destination: ' (Optional) Valid (UNC) path to a folder or to a file with a ' cabinet extension or other extension. ' overwrite: ' (Optional) overwrite (default) or leave an existing cabinet file. ' If False, the created cabinet file will be versioned: ' b, Example (2).cab, etc. ' If True, an existing cabinet file will first be deleted, then recreated.
Often, you wish to specify where the cabinet folder will be decompressed and/or what name the folder should be given. If so, specify the destination parameter: Destination "D:RestoreData" Result decab(Path, destination) by default, if decompressing to an existing folder, decab will overwrite the existing folder completely. Setting parameter overwrite to false will leave existing files, but will overwrite those with the same name as the files in the cabinet folder: Result decab(Path, true) ' delete and recreate the folder. Result decab(Path, false) ' leave existing files in thefolder. Warning be careful and double-check before calling decab with overwrite set to True (default). If Destination is specified wrongly, you may inadvertently erase most of a drive. Code both Cab and decab takes advantage of two standard Microsoft libraries found on any windows machine: Microsoft Shell Controls And Automation Microsoft Scripting Runtime and both functions allow for early or late binding as you prefer, controlled by the constant EarlyBinding that you can. There are many more details to take care of than one might expect, thus a lot of comments are outlined here to study for those that are interested. But don't feel obliged; the functions are ready to use.
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Result cab(Path, false) ' Create a versioned zip folder. Further, a common style for a cabinet folder holding a single file is to replace the last character of the file extension with an underscore. To do so, set the parameter SingleFileExtension to True: Result cab(Path, true) ' create cabinet file with single-file extension. Path is not a single file, parameter SingleFileExtension will be ignored, and the standard cabinet extension will be used. Finally, compression build can be set to standard or high the (default). High compression can be very effective often with a reduction of the compressed file size of about 30 - 50, compared to standard compression. A cabinet folder with standard compression will have a size similar to that obtained for a zip folder.
A typical Microsoft Access database file could be compressed like this: Uncompressed.0 mb compressed, low.8 mb compressed, high.0 mb the penalty for using high compression is compression speed. It is about 50 slower. The decompression time it about the same, regardless of the compression used. Decab Result decab(Path) This decompress Path (a cabinet folder) is like if you, in Windows Explorer, double-click the cabinet folder and copied all the contained files to the parent folder. Result holds 0 (zero) if success, or an error code.
They can do a little more, controlled by the parameters as explained below, and will also work with custom file extensions, should you have the need. Thus, a cabinet folder may be named, say,. This will prevent the file from being recognized by windows Explorer as a cabinet folder. For large and/or many files, the well-known progress bar box will be displayed when copying from a cabinet folder. When creating a cabinet folder, in addition to the hourglass, a minimized command window runs, which can be restored if one wishes to follow the progress. Cab, result cab(Path this is the compress.
Path (a file or a folder's files). This would be similar to using Windows Explorer to right-clicked the file or folder and selected. Send to cabinet folder (which you can't). Result holds 0 (zero) for success, or an error code. For many practical purposes, you may wish to specify where the cabinet folder will be created and what name it should be given. Thus: Destination "D:BackupsData_b" Result cab(Path, destination should you wish so, the extension can be different from cab, for example: Destination "D:BackupsData_k also you are probably aware, that if you in Windows Explorer tried to zip the same file or folder again, windows Explorer will generate. Function Cab mimics this by extending filenames like: D:BackupsData_b D:BackupsData_20171224 (2).cab D:BackupsData_20171224 (3).cab and. If you don't want this, a third parameter is available, overwrite. Thus, if the destination exists: Result cab(Path, true) ' delete and recreate the zip folder.
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And the fact, that the content of a cabinet folder is read-only, may in some cases be an advantage. However, for whatever reason or purpose you may have for using a cabinet folder (or a file as it physically is) that is controlled by vba code in, say, microsoft Excel or Microsoft Access, it should be easy to manage. Several external third-party tools and summary libraries are offered, and each may have certain advantages. An example is the utility from Microsoft, cabarc. Exe, which can preserve subfolders in the cabinet folder, but for the general usage - reading cabinet folders (as Windows Explorer does) and creating them - you only need the two functions presented here: Cab and, deCab - nothing more, nothing less. Note: Zip files/folders can be managed in a similar way. If you are interested in this, please see: Zip and unzip files and folders with vba the windows Explorer way. Cab and decab, these two functions are included in the vba api and does just as if you did it manually on screen thesis using Windows Explorer.
Ease of use, the goal is to read and create cabinet folders with no third-party tools or libraries that are not already present in the user's machine. As you will see, windows Explorer on its own can help us read a essay cabinet file, but it cannot create such a file. However, windows comes with a native command line utility, makecab. Exe, which we will use to create a cabinet folder. There are many uses for cabinet folders. Previously, a saving in disk space was the primary purpose, indeed for creating installation disks and cd-roms, but today that often isn't very important; more the option for collecting a selection of files in one file may be more pertinent. In most cases it will be more convenient to use zip folders, as these can preserve subfolders and be modified after creation, should you later wish to for example, one file inside a zip folder can be updated like a file in a normal folder. Once a cabinet file is created, that's. On the other hand, a cabinet folder can compress certain file types (like bitmap pictures and database files) much better than a zip folder can.
the operator to concatenate (join) all the single lines and store it in the variable text. Next, we search for the position of the words latitude and longitude in the variable text. PosLat InStr(text, "latitude posLong InStr(text, "longitude. We use these positions and the. Mid function to extract the coordinates from the variable text and write the coordinates to cell A1 and cell. Range.Value mid(text, posLat 10, 5 range.Value mid(text, posLong 11, 5). Windows Explorer lets you open cabinet (cab) files like any other folder. In vba you can easily handle normal files and folders, but opening and indeed creating cabinet files takes a lot more - and that's you'll find here.
We need to initialize the variable myFile with the full path and the filename. MyFile or use the getOpenFilename method of the Application object to display the standard open dialog box and select the file (without actually opening the file). MyFile tOpenFilename note: the empty part between the brackets means we give excel vba nothing as input. Place your cursor on GetOpenFilename in the visual Basic Editor and click F1 for help on the arguments. Add the following code line: Open myFile for Input As #1. Note: this statement allows the file to be read. We can refer to the file as #1 during the rest of our code.
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Below we will look at a program. Excel vba that reads data from a text file. This file contains some geographical coordinates we want to import into Excel. First, download the paper text file and add it to "C:test". Place a command button on your worksheet and add the following code lines:. We declare four variables. MyFile of type String, text of type String, textline of type String, posLat of type Integer, and posLong of type Integer. Dim myFile As String, text As String, textline As String, posLat As Integer, posLong As Integer.