Key Facts
- Category
- Data Processing
- Input Types
- file, select
- Output Type
- file
- Sample Coverage
- 4
- API Ready
- Yes
Overview
The CSV File Merger is a streamlined utility designed to combine multiple CSV files into a single, unified document, offering flexible controls for header management, data deduplication, and custom output formatting.
When to Use
- •When you need to consolidate monthly or regional reports into a single master data file.
- •When you want to remove redundant rows across multiple datasets to ensure data integrity.
- •When you need to standardize the format or separator of disparate CSV files for easier analysis.
How It Works
- •Upload your CSV files using the file selector.
- •Choose your preferred header handling method and set the appropriate CSV separator.
- •Toggle the deduplication option if you need to remove identical rows.
- •Download your merged file in your chosen CSV or TSV format.
Use Cases
Consolidating fragmented sales logs from different regional branches into one master spreadsheet.
Merging multiple exported survey results into a single dataset for statistical analysis.
Cleaning up combined datasets by automatically removing duplicate entries across multiple source files.
Examples
1. Consolidating Regional Sales Data
Data Analyst- Background
- The analyst receives daily sales CSV files from three different regions, each with identical column structures.
- Problem
- Manually copying and pasting data from three files is inefficient and prone to human error.
- How to Use
- Upload the three regional CSV files, select 'Use first file headers only', and click merge.
- Outcome
- A single, clean CSV file containing all regional sales data with a unified header row.
2. Merging Customer Lists with Deduplication
Marketing Manager- Background
- The marketing team has two separate customer lists collected from different events, with some overlapping contacts.
- Problem
- Sending duplicate emails to the same customer due to overlapping lists.
- How to Use
- Upload both files, set 'Remove Duplicates' to 'Yes', and process the merge.
- Outcome
- A single, consolidated customer list containing only unique entries, ready for the email campaign.
Try with Samples
csv, xlsx, xlsDuplicate Line Samples
Sample files with various types of duplicate lines for testing duplicate removal tools
preferred input family csv,text
Regex Replace Samples
Collection of common and useful regex replacement patterns for text transformation and data cleaning
preferred input family csv,text
CSV Samples
Sample CSV files with various data types, sizes, and complexity levels
title token csv
Windows String Processing - C# Samples
Comprehensive C# string processing examples for Windows platform including string manipulation, splitting, joining, regex operations, and text analysis
preferred input family csv,text
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FAQ
How many files can I merge at once?
You can upload and merge up to 5 CSV files in a single operation.
What happens if my files have different headers?
You can choose to use only the first file's headers, merge all unique headers, or include all headers including duplicates.
Can I change the output format to TSV?
Yes, you can select TSV (Tab Separated) as the output format in the settings.
Does the tool support different separators like semicolons?
Yes, the tool supports comma, semicolon, and tab separators to match your source files.
Is there a file size limit?
The total size for all uploaded files must not exceed 50 MB.