Click Select CSV-files or pull your files onto the Drag & Drop field to begin with the merging. The CSV files are now getting prepared for the combining. You can see the progress at the blue bars. Once every file is uploaded you can proceed with step 2. Data merge is a very powerful tool. This tutorial will teach you how to easily import structured data, such as text and images in InDesign, in a matter of seconds by reading an external data source file in.csv or.txt file format.
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Often we face the challenge of having to merge csv files or txt files in a folder, into a single file. Excel is the obvious tool for such tasks and today I will show a couple of easy ways for merging multiple files, in a single or even a whole structure of folders, into a single CSV or text file. To merge csv files or other text files it is often best to use Visual Basic for Applications in Excel.
Merge Csv Files Mac Free Downloads
Let’s start with the simplest approach using Windows Command line without having to use Excel.
Merge CSV files using Windows CMD
This approach uses the Windows Command line Copy command.
Open the folder which should contain your CSV or TXT files
Open in Windows Explorer the folder containing CSV or TXT files to be merged. These should be without headers or only the first file should be with headers.
Open CMD command line within folder
Click on the filepath of the Windows Explorer window and type cmd and hit ENTER.
Merge the files using COPY command
The CMD Windows command line Window should open. Type the following command and hit ENTER to merge files
The result will be the newly created merge.csv file with merged data across all CSV files within the directory.
Merge list of csv, txt files
The previous method was very simple and didn’t require the use of Excel or MS Office. The below and the following approaches will provided you with more flexibility when merging files. If you don’t know how to use Macros in Excel read my Tutorial first.
Assuming you want to merge a list of files in a String Array you can use the procedure below. It will merge all provided csv or text files into a single new text file.
Merge csv, txt files example
See an example below of how to use the MergeFiles procedure:
MergeFiles Parameters
fileNames()
Array of Strings representing full file paths to files that are to be merged
newFileName
The name of the new merged file that is to be created
headers
Optional. True by default. This is meant for CSV TXT files (HDR). If True assumes that all files have headers (first row with columns). Only first header will be merged into the new file (newFileName)
addNewLine
Optional. False by default. If True a new line (vbNewLine) character will be added between each merged file
Merge csv, txt files within specified folder
Merge Multiple Csv Into Excel
Another case is when you want to merge all csv files within a single folder. This procedure is similar to the previous one with the exception that it runs through all files within a single directory (excluding subdirectories – for that scroll to next procedure). You can also use wildcards such as “*.csv” to be sure that only csv files are merged a not other files – read my post on the VBA Dir function to learn more.
Merge csv, txt files in folder example
See an example below of how to use the MergeFilesInFolder procedure:
MergeFilesInFolder Parameters
folderName
A folder including all files to be merged. Wildcards are permitted if supported by the VBA Dir function
newFileName
The name of the new merged file that is to be created
headers
Optional. True by default. This is meant for csv files (HDR). If True assumes that all files have headers (first row with columns). Only first header will be merged into the new file (newFileName)
Merge Csv Files Mac Free Software
addNewLine
Optional. False by default. If True a new line (vbNewLine) character will be added between each merged file
Merge csv, txt files within all subfolders
The most complex case is when you want to merge files not only within a certain directory but also within all subdirectories. This will equally work for a scenario when there are no subfolders.
Merge csv, txt files within subfolders example
See an example below of how to use the MergeFilesInSubFoldersprocedure:
MergeFilesInSubFolders Parameters
folderName
A folder with or without subfolders including all files to be merged. Use wildcards with pattern parameter
pattern
If needed a pattern using wildcards permitted by the VBA Dir function
newFileName
The name of the new merged file that is to be created
headers
Optional. True by default. This is meant for csv files (HDR). If True assumes that all files have headers (first row with columns). Only first header will be merged into the new file (newFileName)
How To Merge Csv Files
addNewLine
Optional. False by default. If True a new line (vbNewLine) character will be added between each merged file
Merge CSV files – filter records
Sometimes we want to download just a subset of records in our CSV files. One way is uploading the data and then filtering it in Excel. But why not do it in one go? See my SQL AddIn or my read CSV file using SQL example in this post here.