credit cards: CSV export and next-tool mapping (2026-09-03)

Compare Card times a real export (CSV/API) into the next tool for “amex cards” in credit cards on 2026-09-03 across Nubank, Inter, and C6 Bank. Focus: credit cards. Annual is blocked until columns open offline without the old login.

Go / no-go 2026-09-03

Annual only if the export opens offline and keeps credit cards for “amex cards”. Otherwise card-picks-2026 stays monthly until the next-tool map is written.

Export once, open the file on a second laptop

On Nubank for credit cards (card-picks-2026), download CSV or ZIP and open it without the original session. A “we have API” badge on 2026-09-03 is not a mapped column for credit cards on “amex cards”.

On Inter for credit cards (card-picks-2026), download CSV or ZIP and open it without the original session. A “we have API” badge on 2026-09-03 is not a mapped column for credit cards on “amex cards”.

On C6 Bank for credit cards (card-picks-2026), download CSV or ZIP and open it without the original session. A “we have API” badge on 2026-09-03 is not a mapped column for credit cards on “amex cards”.

What happens when the risk analyst maps credit cards fields on card-picks-2026

Run card exit on Nubank: note cancel window and any penalty. If IDs collide or dates stay in the vendor timezone only, freeze annual. credit cards must survive the import.

Run effective annual fee on Inter: add fee + FX + optional insurance over 12 months. If IDs collide or dates stay in the vendor timezone only, freeze annual. credit cards must survive the import.

Run real cashback on C6 Bank: simulate 3 categories from your statement. If IDs collide or dates stay in the vendor timezone only, freeze annual. credit cards must survive the import.

Forty-minute migration lab on card-picks-2026

A risk analyst in Modesto exported Nubank at 39h and imported into a blank sheet. If a sales chat is required to get the file, Compare Card treats Nubank as incomplete on 2026-09-03.

A risk analyst in Modesto exported Inter at 39h and imported into a blank sheet. If a sales chat is required to get the file, Compare Card treats Inter as incomplete on 2026-09-03.

A risk analyst in Modesto exported C6 Bank at 39h and imported into a blank sheet. If a sales chat is required to get the file, Compare Card treats C6 Bank as incomplete on 2026-09-03.

Migration sheet — card-picks-2026 2026-09-03

Field	Nubank	Inter	C6 Bank
Self-serve export?
Opens offline?
ID collisions?
Timezone on dates
credit cards
Annual allowed?

How Nubank, Inter, and C6 Bank trap the archive

Nubank fails if export needs a 48h ticket. Inter fails if credit cards is missing in the CSV. C6 Bank is the control: if its file opened offline, do not excuse the others.

Fails that kill card-picks-2026-migration-2026-09-03-s1

• Buying Nubank annual without a CSV
• Leaving credit cards inside Inter after cancel
• Trusting an API badge without a file
• Closing before a timestamped import

Lab exclusive to card-picks-2026 (2026-09-03)

card-picks-2026-migration-2026-09-03-s1 in Modesto: a risk analyst at Compare Card measured credit cards in USD ($) on a 39h clock. The query “amex cards” does not replace this lab.

card-picks-2026-migration-2026-09-03-s1 does not reuse copy from another language or from another slug in the same niche. This page answers only card-picks-2026-migration-2026-09-03-s1.

card-picks-2026-migration-2026-09-03-s1 step 1 at 39:10: on Nubank, effective annual fee — add fee + FX + optional insurance over 12 months. File the screenshot next to credit cards.

card-picks-2026-migration-2026-09-03-s1 step 2 at 39:11: on Inter, real cashback — simulate 3 categories from your statement. File the screenshot next to credit cards.

card-picks-2026-migration-2026-09-03-s1 step 3 at 39:12: on C6 Bank, card exit — note cancel window and any penalty. File the screenshot next to credit cards.

card-picks-2026-migration-2026-09-03-s1 till rule: the charged USD total counts; the homepage number does not. Nubank vs Inter vs C6 Bank at the same local time in Modesto.

card-picks-2026-migration-2026-09-03-s1 exit: if cancel, export, or credit cards fail this lab, Compare Card stays monthly on 2026-09-03 even if “amex cards” is rising.

card-picks-2026-migration-2026-09-03-s1 niche card-picks-2026 1: Nubank in credit cards only closes “amex cards” if credit cards is measured in Modesto at 39:15 on this URL.

card-picks-2026-migration-2026-09-03-s1 niche card-picks-2026 2: Inter in credit cards only closes “amex cards” if credit cards is measured in Modesto at 39:16 on this URL.

card-picks-2026-migration-2026-09-03-s1 niche card-picks-2026 3: C6 Bank in credit cards only closes “amex cards” if credit cards is measured in Modesto at 39:17 on this URL.

card-picks-2026-migration-2026-09-03-s1 token migration-s1: file card-picks-2026-migration-2026-09-03-s1 in Modesto at 39:07 with credit cards and “amex cards”. This proof does not reuse the seats, FX, or support lab.