XLSB to CSV Converter
Extract the data from an Excel Binary Workbook (.xlsb) as clean UTF-8 CSV. Formula values included, multilingual text preserved. Nothing stored.
Complete the security check to begin
From Excel’s binary format straight to data
The .xlsb binary workbook is what SAP ALV exports and heavy finance models produce when file size and load time matter. It is excellent inside desktop Excel and opaque everywhere else - most import tools, scripts and services cannot read it at all. When the goal is simply to get the rows out, this converts the active sheet to a clean UTF-8 CSV: values as stored, formulas replaced by their results, text in any language intact.
Need the workbook structure rather than raw rows? XLSB to XLSX keeps sheets and formatting. Need the data queryable? Chain the CSV through CSV to SQLite or CSV to SQL.
Processed like the financial file it probably is
Workbooks saved as .xlsb tend to be ledgers, payroll runs and consolidated reports - files that should never sit on a converter’s disk. This conversion runs entirely in memory inside a no-network sandbox on a server with swap disabled; the file is deleted the moment your download is delivered, and nothing about its contents is logged.
Converting exports on a schedule? The same conversion runs on the API at /api/convert/xlsb-to-csv, with async jobs and signed webhooks. The SAP exports guide covers where these files come from and what else you can do with them.
How to Convert XLSB to CSV Online
Here is how a XLSB → CSV conversion works on PrivConvert, from start to finish. Your file is processed privately in memory and deleted the instant the CSV is ready.
Drag and drop your file into the upload area, click to browse your device, or paste a URL to a file hosted online. You can upload files up to 250 MB and batch convert up to 200 files at once.
Once uploaded, the conversion from XLSB to CSV starts automatically. The process runs entirely in an isolated environment - your data never leaves the secure pipeline.
Your converted file is ready instantly. Click the download button to save it to your device. The file is deleted from memory immediately after download.
What makes this XLSB-to-CSV converter different
Privacy here is not a checkbox. Every XLSB-to-CSV conversion is engineered so your data never lingers, leaks or gets reused.
Runs in any modern browser on Windows, macOS, Linux, Android and iOS - no install, plugin or desktop software needed.
Each job runs in an isolated in-memory sandbox, so most conversions finish in seconds instead of waiting in a queue.
We never keep a copy. Once your CSV is delivered, both the original and the result are gone - there is nothing left to leak or misuse.
Every conversion runs in its own locked-down process with no network access, so files can never leak or interfere with one another.
XLSB vs CSV - Format Comparison
| Feature | XLSB | CSV |
|---|---|---|
| File extension | .xlsb | .csv |
| Supported by PrivConvert | Yes (as input) | Yes (as output) |
| Privacy-safe conversion | In-memory, zero storage | |
| Max file size | 250 MB per file | |
| Batch support | Up to 200 files at once | |
Why people pick PrivConvert for CSV
Thousands of people trust PrivConvert with their files because privacy here is structural - enforced by how the service runs, not just promised.