Batch convert TXT files to CSV files

Want to batch convert TXT files to CSV files?

Try Withdata Data File Converter, a desktop TXT to CSV converter for Windows, MacOS, and Linux, Batch convert TXT to CSV, Easy and Fast.

• Can run in GUI mode, Step by Step, just a few mouse clicks.
• Can run in Command line, for Scheduled Tasks and Streams.
• Convert files locally and privately, avoid uploading large TXT file(s) to online services.
• Support Windows, Linux, and macOS.

Download DataFileConverter
Windows 64 bit
Windows 32 bit
Linux .deb (For Debian, Ubuntu) 64 bit
Linux .rpm (For Red Hat, Fedora, SUSE) 64 bit
MacOS 64 bit

Batch convert TXT files to CSV files

Select source TXT files -> Set CSV files -> Convert TXT files to CSV files

Click “Start a New Convert” at task dialog.

then show the wizard.

Select From “Files” “TXT” To “Files” “CSV”.

1. Select source TXT files.

And config the first source TXT file.

2. Config target CSV files.

3. Summary.

List source TXT files.

4. Convert TXT files to CSV files, 1 TXT to 1 CSV.

After converting, you can view output CSV files.

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More about TXT to CSV converter

See also:

• Convert TXT to CSV
• Merge multiple TXT files into one CSV

TXT → CSV reference

Type mapping

Value kind	in TXT	in CSV
Int	1234, or right-aligned in a fixed-width column	1234
Text	written as-is; padding depends on the chosen layout	quoted only when it contains a comma or a quote
Long text	written as-is	must be quoted; line breaks inside force multi-line records
Date	whatever the writer chose	2026-09-18
Datetime	whatever the writer chose	2026-09-18 14:30:00
Binary	not representable	not representable - base64 or hex string
Boolean	Y / N, or 1 / 0, or TRUE / FALSE	TRUE / FALSE, or 1 / 0 depending on the writer
JSON	written as-is	the whole JSON value quoted, with internal quotes doubled

Dialect differences

Both TXT and CSV are file formats, so what differs below is how each one chooses to represent a value.

Property	in TXT	in CSV
identifiers	None by convention	Double quotes; a literal quote is doubled ("" )
dates	Whatever the writer produced; no convention is guaranteed	Conventional text: 2026-09-18 or 2026-09-18 14:30:00
separator	Whatever was chosen - often fixed column widths	Comma ","
shape	Free form; a parser has to be told the layout	Flat table, optional header row
ceiling	No formal limit	No formal limit; row count bounded by memory

Data File Converter without the manual work

For batch jobs, large files and scheduling use the Data File Converter converter — an offline desktop app for Windows, Linux and macOS. Free trial.