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No Column Headers
Exported data with NO header row — just raw data lines. This is common with older banking systems, mainframe exports, and some ERP batch reports.
Hard
BANK
15
Total Rows
15
Valid (date+amount)
0
Invalid/Skipped
1
Warnings
A
Grade (100%)
Known Problems in This Document
- No headers — parser must guess columns from data patterns
- Date column position is ambiguous
- Amount column could be column 2, 3, or 4
- Extra columns with no clear meaning
Actual Parser Errors & Warnings
Warnings:
- No header row detected — columns auto-detected from data patterns
Side-by-Side: Original Document vs Parser Extraction
Original Document Content
(no_headers_bank.csv)
Parser Extraction Result
1
03/01/2026,,-2317.99,TXN20000,Vendor payment #1,15682.01,DEP
2026-03-01
-2317.99
TXN20000
DEP
2
03/02/2026,,-1605.94,TXN20001,Vendor payment #2,14076.07,WIR
2026-03-02
-1605.94
TXN20001
WIR
3
03/03/2026,,2742.99,TXN20002,Vendor payment #3,16819.06,ACH
2026-03-03
2742.99
TXN20002
ACH
4
03/04/2026,,1217.4,TXN20003,Vendor payment #4,18036.46,CHK
2026-03-04
1217.40
TXN20003
CHK
5
03/05/2026,,2702.98,TXN20004,Vendor payment #5,20739.44,WIR
2026-03-05
2702.98
TXN20004
WIR
6
03/06/2026,,-1870.92,TXN20005,Vendor payment #6,18868.52,DEP
2026-03-06
-1870.92
TXN20005
DEP
7
03/07/2026,,2673.96,TXN20006,Vendor payment #7,21542.48,ACH
2026-03-07
2673.96
TXN20006
ACH
8
03/08/2026,,-133.08,TXN20007,Vendor payment #8,21409.40,DEP
2026-03-08
-133.08
TXN20007
DEP
9
03/09/2026,,2344.22,TXN20008,Vendor payment #9,23753.62,ACH
2026-03-09
2344.22
TXN20008
ACH
10
03/10/2026,,2975.74,TXN20009,Vendor payment #10,26729.36,WIR
2026-03-10
2975.74
TXN20009
WIR
11
03/11/2026,,-1193.93,TXN20010,Vendor payment #11,25535.43,DEP
2026-03-11
-1193.93
TXN20010
DEP
12
03/12/2026,,-1134.42,TXN20011,Vendor payment #12,24401.01,WIR
2026-03-12
-1134.42
TXN20011
WIR
13
03/13/2026,,-96.41,TXN20012,Vendor payment #13,24304.60,CHK
2026-03-13
-96.41
TXN20012
CHK
14
03/14/2026,,2783.45,TXN20013,Vendor payment #14,27088.05,ACH
2026-03-14
2783.45
TXN20013
ACH
15
03/15/2026,,1723.7,TXN20014,Vendor payment #15,28811.75,ACH
2026-03-15
1723.70
TXN20014
ACH