Files with csi extension can be found as special form (challan) status inquiry files that are generated by the information system of Income Tax Department of the Indian Minstry of Finance.

There are 5 other file types using
the CSI file extension!

csi icon.csi - Microsoft SharePoint Server temporary data

empty icon.csi - CARE-S InfoWorks water quality data

empty icon.csi - Campell Scientific EdLog program data

empty icon.csi - ContentServ CS EMMS Suite include data

empty icon.csi - Corel script

CSI file extension - Challan Status Inquiry

What is csi file? How to open csi files?

File type specification:

Accounting, financial and tax file type icon Accounting, financial and tax file type

File extension csi is used for a specific format used by the Income Tax Department, Ministry of Finance, Government of India to handle the progress or status of forms (challans) filled by tax payers with valid CIT number.

It contains details about tax payments made through banks, including the BSR code of the bank branch, date of deposit, challan serial number, and amount.

These files can be downloaded from the tax portal once users enter their CIT (10-digit number) and check out the status of their forms.

Updated: February 8, 2024

Help how to open:

Probably only used in India and for specific tax accounting / tax filling purposes.

How to convert:

Once the form is opened using .csi file, it might be possible to save it in PDF format.

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