Search the Play Store for "CSV viewer" and you get several hundred results, most of which are the same thing: a WebView, an ad SDK, and a parser that gives up somewhere north of ten thousand rows. Several are file managers that have learned to say the word CSV.
So this page is not a list of app names with star ratings. It is the four genuinely distinct routes to reading a CSV on Android, what each one actually does, and the point at which each one breaks.
The fast answer
- Already have Google Sheets: it's free, it's installed, and for a normal file it's the shortest path. Requires an upload.
- Offline, or the file is confidential: a native CSV app that reads the file in place, so nothing leaves the device.
- Large file (100,000+ rows): a native app built for size. Sheets and the ad-supported viewers both fall over here, in different ways.
- You only need to eyeball a few lines: any text editor. Really.
What "free" costs on the Play Store
Worth being blunt about the category before recommending anything in it. A free CSV viewer is monetised one of three ways, and each has a tell:
- Ads. Usually a banner, sometimes an interstitial between file opens. The tell is the permissions list and an install size out of proportion to a table renderer.
- A paywall on the thing you need. Free to view, paid to export, share or open anything over N rows. This is fine when it's stated and irritating when you find out at row 5,001.
- Data. Rarer than the reputation suggests, but check what a CSV viewer wants access to. A local file reader has no reason to need contacts, location, or unrestricted network access.
The one to actually watch for, though, isn't monetisation at all:
Silent truncation. A viewer that reads the first few thousand rows to stay responsive and never says so. It looks like it worked. Check the row count against the source before you trust any of them.
Route 1: Google Sheets
Free, already on most Android phones, and the correct answer for a file under about 50,000 rows.
Upload the CSV to Drive, then Open with → Google Sheets. It converts the file into a Sheets document.
Where it breaks:
- The 10 million cell ceiling is rows × columns — a 40-column export runs out at 250,000 rows.
- The file has to upload. On mobile data with a large export this dominates everything else.
- It converts. What you get back on export is a new CSV, re-typed on the way through: leading zeros stripped, long IDs in scientific notation, dates reformatted to whatever your locale prefers.
- Nothing works offline.
Route 2: WPS Office / OfficeSuite
The full mobile office suites open CSVs and are the closest thing on Android to a real spreadsheet — actual formulas, actual formatting.
Where they break: install size in the hundreds of megabytes, aggressive
upsell, and a row ceiling that varies by version and is rarely documented. They
are the right choice if you also need .docx and .xlsx on the phone, and
oversized if a CSV is all you have.
Route 3: a text editor
Underrated. If the question is "what are the column names" or "did the export run at all", any decent editor answers it in one tap and zero ceremony.
Where it breaks: immediately, for anything else. There is no alignment, no sorting, no filtering, and a quoted field containing a comma looks exactly like two fields.
Route 4: a dedicated CSV app
This is the route worth spending an install on when the file is large, confidential, or both — because a native app reads it from local storage with no upload and no conversion step.
Opens the file in place on Android, then lets you interrogate it: SQL queries, a visual filter editor, charts, an AI assistant you can ask in plain language, and PDF export.
What it doesThat is our app, so weigh the recommendation accordingly — the comparison above is the part that has to hold up.
Choosing between them
| Your situation | Route |
|---|---|
| 5,000-row file, phone has Sheets | Google Sheets |
| No signal, or a customer list | A native CSV app |
| 300,000 rows | A native CSV app |
| "Did the export produce anything?" | Text editor |
| Also need Word and Excel files | WPS Office / OfficeSuite |
| Need to change rows and save it back | See below |
The editing gap on Android
One honest limitation, since this page claims to be a comparison: full spreadsheet-style editing of a large CSV is thinner on Android than on iOS. Sheets edits fine within its ceiling but converts your file; the office suites edit but are heavy; our own CSV Editor is iOS-only, and pretending otherwise would be exactly the thing this page is complaining about.
If you need to edit and hand a file back unchanged on Android, the realistic options are Sheets (accepting the re-typing) or an office suite. If the file is large enough that neither can hold it, do the edit on a desktop.
Before you install anything
Three checks, thirty seconds:
- Row count. Open the file and compare its row count against the source. If the app doesn't tell you how many rows it loaded, that is itself information.
- Permissions. A local CSV reader needs storage access. It does not need contacts.
- Offline. Turn off the network and open a file. Anything that fails is a web app in a native wrapper.