CSI Converter

Extract text from Tax challan status files (CSI)


Drop or upload your .CSI file

How to extract text from your CSI file

  1. Click the "Select File" button above, and choose your CSI file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert CSI to another file type

To convert CSI Challan files to another format, you need TDS RPU or other Data software.

Convert a file to CSI

To convert other file formats to the "Tax Challan Validation File" file type, you need software like TDS RPU or a similar tool.


About CSI files

The .CSI file format primarily functions as a Tax Challan Status Inquiry file. It is generated and downloaded from the Indian government's TIN NSDL (Protean) portal. This file contains transactional data about tax payments (Challans) and is strictly used to validate Quarterly TDS (Tax Deducted at Source) returns via the government's Return Preparation Utility (RPU) or File Validation Utility (FVU).

While essential for Indian tax compliance, the .CSI file has major limitations. It is a highly specialized, raw text-based data file that lacks standard formatting. You cannot easily read the data to verify challan details manually, and it requires proprietary desktop utilities to process. Opening it directly in standard spreadsheet software often results in a garbled mess of unparsed text. (Note: A tiny fraction of .CSI files belong to ContentServ Include files or Campbell Scientific EdLog programs, which are completely different text scripts).

To overcome these readability issues, you must convert the file. For manual auditing and spreadsheet editing, convert .CSI to CSV or XLSX to cleanly separate the data fields. For archiving and sharing records with clients, convert to PDF. Drag and drop your file to analyze and convert it - free, online, and without installing software.

Convert.Guru analyzes your CSI file, detects the exact format, and lets you read the text inside.

Users also converted PDF, TXT, RPT, PMD, CIS, JPG, ASPX, CRDOWNLOAD, TDS, ZIP, CSIG, OCT and ENC files.


FAQ

If you want to convert CSI file to PDF, JS, TS, PY, JAVA, CPP, C, CS, PHP, RB, GO or RS, you can use TDS RPU or similar software from the "Tax Payment Validation Data" category. In the File menu, look for Save As… or Export….

To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to CSI, try TDS RPU or another comparable tool in the "Tax Payment Validation Data" category.



The CSI Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CSI converter.