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Paid conversions are paused while we put the finishing touches on DataMeans. You can still upload a file and preview your data for free. Check back soon for full exports.

Convert COBOL Data Files to CSV, Excel, JSON & SQL

Upload your COBOL Data Files

COBOL data files. We detect your schema, tables, and rows, then convert them to clean CSV, Excel, JSON and SQL, with a free preview before you pay.

How to prepare your file

1

Identify your COBOL data files on the mainframe or server

2

For a VSAM dataset, unload it to a flat sequential file first: IDCAMS REPRO INDATASET(your.vsam.cluster) OUTDATASET(your.flat.file)

3

FTP the data files in BINARY mode. ASCII mode corrupts packed decimal and binary fields

4

For a variable-length dataset (RECFM=V, VB or VBS), send SITE RDW before the transfer, or the record lengths are lost

5

Locate the matching copybook definitions (.cpy, .cob). No need to convert them to ASCII

6

Create a ZIP archive with the data files and copybooks together

7

Upload the ZIP archive below

  1. 1Upload
  2. 2Preview
  3. 3Download

Uploading is free. You'll see your detected tables and sample rows in a preview first, and only pay if you choose to download the full export.

Drag & Drop or Browse

COBOL Data Files Files or ZIP Archive

up to 2 GB

A single file works too — the ZIP just makes sure related files (memos, indexes) come along.

Encrypted in transit & at rest
Auto-deleted after your retention window
Never used to train models

You confirm you own, or are authorized to process, this data. Avoid uploading regulated or sensitive production PII without the appropriate data-handling agreements in place.

No charge to preview. You pick a format and pay only if you download.