Add your XLSB file
Drop one or more .xlsb files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
XLSB to TSV
Converting a .xlsb file to .tsv extracts the document's content from its office package into a portable form. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop XLSB files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting Excel binary workbook to TSV table
Converting a .xlsb file to .tsv extracts the document's content from its office package into a portable form. An .xlsb file is a Microsoft Excel workbook whose sheets are stored as binary BIFF12 records instead of XML. The packaging is the same ZIP as .xlsx, but each worksheet is a .bin part, which makes very large workbooks noticeably faster to open and smaller on disk.
A .tsv file stores a table as plain text with one record per line and a tab character between columns. It is CSV's stricter sibling: because literal tabs almost never occur inside data, most TSV files need no quoting rules at all. For this route the practical draw is trivially parseable — split each line on tab, no state machine required and pastes directly into and out of Excel and Google Sheets, because spreadsheet clipboards already speak tabs — balanced against a single stray tab inside a value silently shifts every following column, which is worth knowing before you commit a large batch.
Why convert XLSB to TSV?
The practical trigger for this conversion is usually a mismatch: with .xlsb, far less widely supported than .xlsx outside Microsoft's own tools. Switching to .tsv buys you trivially parseable — split each line on tab, no state machine required, which is why it is the better fit for database dumps — PostgreSQL's COPY and MySQL's SELECT INTO OUTFILE default to tabs. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
XLSB vs TSV at a glance
| Aspect | Excel binary workbook (.xlsb) | TSV table (.tsv) |
|---|---|---|
| Format type | Text-based — characters and structure, so there is no visual quality loss | Text-based — characters and structure, so there is no visual quality loss |
| How it stores data | oOXML ZIP package whose worksheets are xl/worksheets/sheetN.bin rather than XML | one record per newline-terminated line, with fields split on the tab character (U+0009) |
| Strongest at | very large models where .xlsx open and save times have become painful | database dumps — PostgreSQL's COPY and MySQL's SELECT INTO OUTFILE default to tabs |
| Weak spot | far less widely supported than .xlsx outside Microsoft's own tools | a single stray tab inside a value silently shifts every following column |
Pick TSV as the output
Select .tsv in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if TSV is selectable, the route is real and validated.
Convert on your device
Press Convert. The package is unzipped in memory and its XML content parsed locally; nothing is uploaded.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid TSV file. Outputs keep the original filename with the .tsv extension.
XLSB to TSV questions, answered
Will converting XLSB to TSV lose quality?
There is no visual quality to lose — xlsb is text-oriented and tsv is text-oriented, so the question is structural fidelity. Text, ordering, and basic structure are preserved; complex layout, embedded objects, and styling beyond the target's model are simplified.
Is it private to convert XLSB files here?
Yes — the .xlsb file is processed inside your browser tab and never uploaded. The package is unzipped in memory and its XML content parsed locally; nothing is uploaded. Close the tab and the file is gone from memory.
Where will the TSV file work?
Every spreadsheet application imports TSV, command-line tools handle it natively, and any text editor opens it — though column alignment on screen can be misleading. Browsers treat it as downloadable plain text.
Will the TSV file be bigger or smaller than my XLSB?
It depends on the content: one record per newline-terminated line, with fields split on the tab character (U+0009). Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my XLSB file?
In .xlsb, docProps/core.xml and docProps/app.xml remain XML inside the package, so author and application metadata survive there even though the cells are binary. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.