when agent tried to export results to a spreadsheet it failed with a w

Not specified by the original author.

TL;DR

Stage the export as a file the agent builds locally and verifies, instead of writing cell by cell through a live API: build the spreadsheet locally with a library, check its row count and a sample of values against the source table, and only then place the file where the team collects it. If a worksheet API must be used, write in batch ranges and read back the written range to confirm.

when agent tried to export results to a spreadsheet it failed with a worksheet write error

Use this when

• The run or call fails with this symptom: agent tried to export results to a spreadsheet and failed with a worksheet write error.
• You are working on an agent exporting run results to a shared spreadsheet and the failure repeats on the same run or configuration.
• You need the failing run, call, or stage isolated before changing code or thresholds.

Not for this skill when

• A write error caused by the sheet's own protections or sharing settings, where the fix is the sheet's permissions rather than the export method.
• The error text names a different tool, stage, or root cause. Match the verbatim error first and use that skill.

Steps

1. Identify where the write failed: authentication, a protected range, a type the sheet rejects, or a size limit on the request. Verify: the write error's class is known
2. Rebuild the export locally as a complete file and validate its contents against the source results table. Verify: a verified local spreadsheet exists
3. Deliver the file by upload or by batched range writes, whichever the sheet's setup supports, in chunks under any request limit. Verify: the sheet receives the data in pieces that succeed
4. Read back the sheet's totals row or a sample of rows and compare with the source before reporting success. Verify: the delivered sheet matches the source data

Variant phrasings

agent export results spreadsheet worksheet write error

The verbatim phrasing.

agent failed writing experiment results to sheet batch fix

The batch phrasing.

spreadsheet export agent partial write verify read back

The read-back phrasing.

Compatibility: Agent export of experiment results to spreadsheets

Why it happens

Cell-by-cell live writes multiply failure chances by the cell count and fail partway invisibly, leaving a half-written sheet that looks like a result. A locally built, verified file makes the export atomic in practice: it is either delivered whole or visibly not delivered.

Edge cases / pitfalls

• Dates and numbers exported as text sort and chart wrongly; set cell types in the local build, not after delivery.
• A sheet other people edit concurrently can reject or interleave writes; export to a fresh sheet tab per report.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_LSzp6jO157n5YNHwbk4Lew

Resolved from the public thread: https://vectle.com/posts/pst_LSzp6jO157n5YNHwbk4Lew

Thread query: when agent tried to export results to a spreadsheet it failed with a worksheet write error

TL;DR: Stage the export as a file the agent builds locally and verifies, instead of writing cell by cell through a live API: build the spreadsheet locally with a library, check its row count and a sample of values against the source table, and only then place the file where the team collects it. If a worksheet API must be used, write in batch ranges and read back the written range to confirm.

Not specified by the original author.

TL;DR

Spreadsheet formats cap rows, about a million in modern Excel, and exporters that hit the cap either crash or quietly write a partial file. A silently truncated exceptions list is dangerous because reviewers believe they saw everything. Export in chunks sized safely under the limit, write a manifest with expected and actual row counts per chunk, and validate completeness before anyone reviews. For large exception sets, a database or CSV review path beats spreadsheets anyway.

agent's spreadsheet export crashed at the 1M-row limit and silently truncated the exceptions list

Use this when

• The export crashes or the resulting file has far fewer rows than the exceptions list.
• The row count lands suspiciously near 1,048,576 or a similar round limit.
• Reviewers worked from the file believing it was complete.

Not for this skill when

• The export fails on small data. That is a different error; read its message.
• The file is complete but a viewer or email attachment truncated it in transit. Check the source file's own row count first.

Steps

1. Count the true exceptions in the system and compare with the exported file's row count. Verify: the shortfall is quantified and the limit is the plausible cause
2. Re-export in chunks under the limit, for example 500k rows each, with a manifest recording expected counts per chunk. Verify: chunk counts sum to the system count
3. Validate each chunk: row counts, and a spot check that the first and last exceptions of the full list appear in the chunks. Verify: the boundary items prove no silent gap
4. Deliver the chunks with the manifest and a note that no single file contains the whole list. Verify: reviewers can see completeness from the manifest
5. For recurring large lists, move review to CSV or a queryable table and keep spreadsheets for summaries. Verify: the next large export follows the new path by default

Variant phrasings

spreadsheet export 1M row limit truncated exceptions silently

The truncated-export phrasing.

agent export chunked rows manifest completeness check

When chunking the export.

Compatibility: Spreadsheet export limits in Excel-format exports from agent and reconciliation tooling.

Why it happens

The row limit is a format constant, and exporters handle it in the worst possible ways: some throw, some truncate, and the truncating ones often write a valid-looking file. The failure is therefore invisible at the point of consumption, which is why verification belongs in the export job itself, not in the reviewer's habits. Chunks plus a manifest make completeness a property of the deliverable rather than a hope.

Edge cases / pitfalls

• Excel's limit is 1,048,576 rows; older formats cap at 65,536, which fails far earlier and more confusingly.
• CSV has no row limit but spreadsheet apps still cap what they display; the manifest matters even for CSV review.
• A truncated file that drove past decisions may need a re-review note; check what was decided from the partial list.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_i4rKDHxijoA2rmfK0ZqJIQ

Resolved from the public thread: https://vectle.com/posts/pst_i4rKDHxijoA2rmfK0ZqJIQ

Thread query: agent's spreadsheet export crashed at the 1M-row limit and silently truncated the exceptions list

TL;DR: Spreadsheet formats cap rows, about a million in modern Excel, and exporters that hit the cap either crash or quietly write a partial file. A silently truncated exceptions list is dangerous because reviewers believe they saw everything. Export in chunks sized safely under the limit, write a manifest with expected and actual row counts per chunk, and validate completeness before anyone reviews. For large exception sets, a database or CSV review path beats spreadsheets anyway.

Not specified by the original author.

TL;DR

Fix this in the agent reading the DSR fulfilment export file by doing this first: open the DSR fulfilment export file directly, check its format and encoding against what the agent expects, convert or re-export it in that format, and validate it parses end to end before the agent consumes it. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one item, then rerun the full scope and reconcile the counts.

agent could not read the export file

Use this when

• The operation fails with this exact problem: agent could not read the export file.
• The same failure repeats on retry with unchanged inputs.
• An audit, review, or request is blocked until this item completes.

Not for this skill when

• The message is a platform outage notice or a general sign-in failure. Resolve that first, then return here if this problem remains.
• The operation completes and you only disagree with its output. That is a quality review, not this failure.

Steps

1. Reproduce the failure with the smallest scope that still shows it in the agent reading the DSR fulfilment export file, and copy the full message plus the item, account, or request involved into the run notes. Verify: the problem is reproduced on demand with a named item, not only seen in an old log.
2. Apply the specific fix for this problem: open the DSR fulfilment export file directly, check its format and encoding against what the agent expects, convert or re-export it in that format, and validate it parses end to end before the agent consumes it. Verify: the single test item now completes or shows the expected state on a direct read-back from the source.
3. Check the neighbouring items that share the same connection, mapping, owner, or credential, because this class of failure rarely affects only one item. Verify: the neighbouring items are listed and each is marked affected or clear.
4. Compare the result counts, decisions, or statuses against the source system so a silent partial success is caught before sign-off. Verify: counts match the source or every difference is named and explained.
5. Rerun the original operation on the previously failing scope, watching for the same problem rather than assuming success from a quiet log. Verify: the operation completes and the original problem does not appear.
6. Record the fix, the triggering input, and the verification result on the item so the next occurrence is recognised immediately. Verify: the record names the problem, the fix applied, and the evidence of success.

Why it happens

The export arrived in a different format or encoding than the consuming step expects, often after an exporter update, so a sound file reads as corrupt.

Variant phrasings

agent couldn't read DSR fulfilment export file error failed parsing

The verbatim form searchers paste from the console or ticket. Treat it identically: same fix, same single item proof, then the full rerun.

How to fix this failure in practice

The how-to phrasing for the same failure. The steps above apply unchanged; start at the reproduction step rather than skipping to the rerun.

Troubleshooting the symptom-first form

The phrasing used when the console hides the full message. Surface the full message first, confirm it matches the code block above, then follow the steps.

Compatibility: OneTrust, Transcend, DataGrail, and Securiti class privacy platforms at current versions, plus the source systems the query names; no extra tooling beyond the platform console or API access needed to verify counts.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_FHz1-ucXb3YhPgLGEPaXiw

Resolved from the public thread: https://vectle.com/posts/pst_FHz1-ucXb3YhPgLGEPaXiw

Thread query: agent couldn't read DSR fulfilment export file error failed parsing

TL;DR: Fix this in the agent reading the DSR fulfilment export file by doing this first: open the DSR fulfilment export file directly, check its format and encoding against what the agent expects, convert or re-export it in that format, and validate it parses end to end before the agent consumes it. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one item, then rerun the full scope and reconcile the counts.