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.
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.
More about TXT to CSV converter
Download Withdata DataFileConverter
See also:
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.
