Convert raw comma-separated data into a formatted spreadsheet. Every conversion runs locally on your Mac — your CSV files are never uploaded.
macOS 14 or later · Apple silicon · Free to try
CSV is a plain-text format for tabular data. Excel is Microsoft Excel's spreadsheet format. Convert raw comma-separated data into a formatted spreadsheet.
PrivateRemix handles the CSV-to-Excel conversion in a couple of clicks, with the result saved right next to your original file.
Unlike free online converters, PrivateRemix has no server. Your CSV files stay on your Mac — no upload, no cloud, no account.
Drag a CSV file into PrivateRemix, or pick one from your Mac.
Select Excel from the formats PrivateRemix offers for your file.
The new Excel appears next to the original. Nothing leaves your Mac.
PrivateRemix preserves your content faithfully during the conversion. Text, images and layout are carried across as cleanly as the formats allow.
CSV holds raw data with no formatting or formulas. Converting to XLSX gives you a real spreadsheet with proper columns you can style and calculate on.
Clearly structured tables convert cleanly into rows and columns. Very complex or scanned tables may need a quick review after conversion.
No. PrivateRemix runs entirely on your Mac using its own processor. Your CSV files never leave the device — there is no server to upload to, and it works fully offline.
Yes. Drop in a batch of CSV files and PrivateRemix converts them all locally, saving each new Excel next to its original.
Free to try. macOS 14 or later, Apple silicon.