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TRUST SIGNALS
Key highlights of the appLogs, CSV, Excel, JSONL and Parquet open on the work item without a download; on a site with Rovo, ask the agent instead

Log attachments with level chips
The log in this shot is 38 MB and it opened in about three seconds. Chips filter to one level in a click, and the footer keeps the full count: 14,326 ERROR and 28,652 WARN in this file.
A 120,000-row workbook opens in seconds
A 120,000-row Excel workbook attached to the issue opens in seconds: headers detected, date and number formats applied, every sheet listed in the schema view.
Ask Rovo about an attachment
The Lens Attachment Reader joins Rovo Chat. It reads a file on the open work item and answers from it: the columns of a CSV, the error lines of a log, a summary of a workbook, the rows that mention a word.
More details
Someone attaches a 38 MB log to a work item; the next person downloads it to read one line. Lens File Viewer opens it there as a paged table and lists the other data files.
CSV, Excel, JSONL, Parquet, logs and text. Logs, JSONL and CSV open gzipped. Level chips and a next-error arrow on logs; a 120,000-row workbook opens, headers found; any table exports as CSV.
On a site with Rovo, the Lens Attachment Reader agent answers questions about them in Rovo Chat, one file per question, with your Jira permissions. A CSV, JSONL, log or text file is read in its first 4 MB and the answer says so.
Runs on Atlassian with no vendor servers; your browser keeps only the theme, each file's view state, the evaluation notice's two counts and your answer to its one review prompt.
Free up to ten users. Past ten, every user is billed: USD 3.35 per user per month up to 100 users, less on larger sites, a year for the price of ten months, after a 30-day evaluation.
Support: support@twilightventures.dev
Resources
App documentation
Comprehensive set of documentation from the partner on how this app works
Privacy and Security
Privacy policy
Atlassian's privacy policy is not applicable to the use of this app. Please refer to the privacy policy provided by this app's partner.
Partner privacy policySecurity program
This app is not part of the Marketplace Bug Bounty program.
Integration permissions
Lens File, Log, & Attachment Viewer for Jira and Rovo integrates with your Atlassian app
Version information
Version 2.21.0•for Jira Cloud
- Release date
- Oct 15th 2026
- Summary
- Parquet footers listing a column the schema lacks are refused at open
- Details
One of our test files, a 1.3 KB Parquet whose footer has one byte flipped so a column chunk no longer matches the schema, opened in 2.20.0 with that column missing and no warning. Now the panel refuses it at open as damaged, and so does the Lens Attachment Reader when a Rovo Chat question sends it to that file.
The memory sentence was wrong for some broken files too: on a 1.3 KB Parquet file with a few bytes flipped, 2.20.0 said the panel had run out of memory. Such a file is called damaged now.
A workbook from the same set, its zip directory claiming four gigabytes of compressed data for a sheet in a 2.7 KB file, is refused at once; 2.20.0 spent over a minute asking the file for those bytes, and the agent gave no answer.
- Payment model
- Paid via Atlassian
- License type
- Commercial