Support

Parqsee is made by one developer; replies are as fast as that allows.

Getting help

Write to us through the contact form, or — if you have a GitHub account and the problem is a bug — open an issue at github.com/k0kishima/parqsee/issues, where it can be tracked in the open. Either way it helps to include:

• your macOS version and Mac model, and the Parqsee version (Parqsee → About Parqsee);
• what you did and what happened instead;
• for a file that will not open: how it was written (pandas, Spark, DuckDB, …), its size, and — if you can share it — a small file that shows the problem. Never attach data you are not free to publish.

Questions that come up

Why do I have to open a folder before I can browse?

The App Store version runs in Apple's sandbox, which lets an app read only what you hand it. Dropping a file on the window, double-clicking it in Finder or picking it in the open panel is enough for that file; to browse a tree in the sidebar, use Open Folder (⌘⇧O) once and Parqsee can reopen that folder at every launch.

What is the limit in the free version?

Three files open at a time. Everything else — paging, filters, search, the SQL view, export — works with no limit. The one-time in-app purchase removes the tab limit permanently; there is no subscription and no trial that runs out.

I bought the full version but a new Mac shows the limit

Open Settings → Purchase and choose Restore Purchases, signed in with the Apple Account that made the purchase. The purchase is tied to that account, not to the machine, and Family Sharing follows Apple's rules for in-app purchases.

Can I get a refund?

Apple is the seller for everything bought in the App Store. Request a refund at reportaproblem.apple.com.

Which files can it open?

Apache Parquet files (.parquet), whichever tool wrote them, with any of the usual compressions. Very large files are fine — pages are read by skipping the row groups before them, not by decoding the whole file. If a file will not open, it is worth filing: the error the app shows is the one the reader gave.

Where does Parqsee keep my recent files and tabs?

Inside its own container on your Mac, and nowhere else — see the privacy policy. Recent files can be cleared from the start screen; removing the app's container resets everything.