Convert FEATHER to XLSX Online

1) Upload FEATHER file to convert

Drop files here, or Click to select

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Allowed file types: qif, iif, srt, ics, feather, excel, ris, bib, ods, xls, xlsx, xlsm, csv, tsv, tab, xlsb, xltx, xlr, pxl, qpw, wb3, wq1, dbf, wk3, 123, mdb, evtx, pages, numbers, sqlite

2) Set converting FEATHER to XLSX options

3) Get converted file

DOWNLOAD CONVERTED FILE

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Get Total Excel Converter to convert XLS, XLSX, ODT, XLSM, etc. safely.

Convert Excel Files in Batch!;
Convert FEATHER to XLSX and in many other formats
Convert hundreds of spreadsheets in 3 clicks;
Both MS Office and OpenOffice files;
Have a desktop converter that works without Internet;
Keep your files safe, don't send them to the web;
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Total Excel Converter

Total Excel Converter supports almost all Excel extensions: XLS, XLSX, XLSM, XLSB, XLT, XLTM, XLTX, XLK, XLW. When the new Office is released, we will add new file types too.

With Total Excel Converter you can convert Excel to PDF and add a digital signature in one go.

Total Excel Converter can convert each page of your spreadsheet into a separate file.

Tell Total Excel Converter to copy original time stamps if you don't want to change the date.

Have an outdated Microsoft Office 2003? Update all your old files to the new format in one go. Convert XLS files to XLSX in batches.

Total Excel Converter will help you to convert Excel 2003 XML Files (rare option!)

Total Excel Converter has a built-in renamer to give your files new descriptive names. Include a counter, a date or worksheet name into the file name and your files will be in perfect order.

Convert Excel spread sheets via our most straightforward interface.

The widest list of output file types: DOC, PDF, HTML, MHT, XHTML, CSV, TXT, TIFF, JPEG, SVG, RTF, XML, XLS, XLSX, ODS, ODT, Lotus, DIFF, SYLK, LATEX, SQL, DBF, Access!

Total Excel Converter can combine several Excel spread sheets into one TIFF or PDF file.

Want to quickly find a file? Total Excel Converter helps you to preview any document you select.

Add your logo or any other image to the header or the footer of the output file.

Want more order? Add page counters or a date to every page of the output files. Sequential numbering of several folders is avaialble.

Total Excel Converter can copy original time stamps if you want to keep them.

When you convert Excel to PDF you can set user permissions, password-protect your files or sign with a digital signature. Get PDF, PDF/A and non-searchable PDFs.

Total Excel Converter can be run via command line (get the ready-to-use command line from GUI).

How to convert FEATHER to XLSX?

Upload Your File: Go to the site, click on «Upload File,» and select your FEATHER file.

Set Conversion Options: Choose XLSX as the output format and adjust any additional options if needed.

Convert and Download: Click «Download Converted File» to get your XLSX file.

Cloud Based

There is no need to install any software to convert FEATHER to XLSX with CoolUtils. Simply access the internet, and you can easily convert your file online with our service.

Secure

Our hardware operates in top-tier, highly secure data centers equipped with advanced electronic surveillance and multi-factor access control systems.

Ease of Use

Converting from FEATHER to XLSX has never been so simple. Our intuitive interface lets you convert files in just a few clicks.

Privacy

We understand the importance of privacy, which is why we've developed a comprehensive privacy policy detailing how we handle your files and personal information. You can read the policy here.

FEATHER File

File extension	.FEATHER
Category	File
Description	Feather is a fast, lightweight binary columnar storage format for data frames. It is designed for quick data exchange between Python (Pandas) and R environments using Apache Arrow.
Associated programs	Pandas, R (arrow), Julia, Apache Arrow
Developed by	Wes McKinney, Hadley Wickham
MIME type	application/feather
Useful links	https://arrow.apache.org/docs/format/Feather.html More detailed information on FEATHER files
Conversion type	FEATHER to XLSX

XLSX File

File extension	.XLSX, .EXCEL
Category	Document File
Description	XLSX is a format from Office Open XML family, a native MS Excel file type starting from version 2007. As opposite to XLS, this format uses ZIP compression that makes XLSX files smaller in size. Actually XLSX file is an archive of XML-documents. The cells in XLSX table can contain plain text, formulas or graphic elements. XLSX can be read in MS Office 2007 and later, Universal Viewer, OpenOffice, MS Office Excel Viewer, Corel WordPerfect Office. This format doesn’t support macros.
Associated programs	Microsoft Excel 2007 OpenOffice OxygenOffice Progessional (Linux)
Developed by	Microsoft
MIME type
Useful links	More detailed information on XLSX files

Rating FEATHER to XLSX

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FAQ ▼

How do I convert a FEATHER to XLSX for free?

To convert FEATHER to XLSX for free using Coolutils, simply upload your file on our website, select XLSX as your output format, and click "Convert." Our service offers a limited number of free conversions per day without registration.

How do I save an FEATHER as a XLSX?

To save your FEATHER as a XLSX with Coolutils, upload your file, choose XLSX from the dropdown menu of available formats, adjust any settings if needed, and click "Convert." Once conversion is complete, download your new XLSX file directly to your device.

How do I open a FEATHER file?

If you don't have software to open a FEATHER file, Coolutils can help. Convert it to a more accessible format like PDF or DOCX using our online converter. Simply upload your FEATHER file, select your preferred output format, and convert it for immediate viewing.

Is it safe to convert my files online?

Yes, converting files with Coolutils is safe. We use secure HTTPS connections, automatically delete all uploaded files within 24 hours, and never share your documents with third parties. For sensitive information, we also offer offline converter solutions.

Can I convert files using my mobile device?

Absolutely! Coolutils is fully compatible with mobile devices. Our responsive website works on smartphones and tablets running iOS or Android. Simply visit our website through your mobile browser, upload your file, select the desired output format, and convert it—no app installation required.

FEATHER to XLSX: share columnar data in a familiar spreadsheet

Feather (.feather) is a fast, columnar format based on Apache Arrow. It’s ideal for analytics: compact, typed, and lightning-quick to read in Python (pandas), R, and other data tools. But when you need to hand results to a colleague, attach to an email, or do a quick pivot without code, Excel is still the common language. Converting Feather to XLSX keeps your data portable and easy to review while preserving schema and types wherever possible.

What converts well

Primitive types: integers, floats, booleans, and strings map cleanly to Excel cells.
Dates & datetimes: stored as real Excel date/time values for filtering and formatting.
Categoricals: exported as their label values, ready for pivot tables.
Multiple tables: each input table (or partition) can become a separate worksheet.

Typical workflow

Upload your .feather file.
Select Excel (XLSX) as output and choose options (sheet name, header row, date format).
Convert and download the workbook; open in Excel to filter, sort, and build pivots or charts.

Tips for best results

Mind Excel limits: max ~1,048,576 rows ? 16,384 columns per sheet. For larger sets, split across sheets or export a filtered slice.
Keep types clean: mixed text/number columns become text in Excel; standardize types before conversion if possible.
Dates & time zones: Feather may hold UTC or tz-aware values; decide whether to export as UTC or a specific local time and format cells accordingly.
Long text: enable wrap text or widen columns after opening to avoid truncation in views and prints.
Column names: use concise, human-readable headers—these become your Excel field names.

Limitations to know

Nested/complex Arrow types (lists, structs, maps) don’t have a native Excel type. They’re flattened to JSON strings or expanded into multiple columns where feasible.
Missing values: Arrow nulls map to blank cells. If you rely on sentinel values (e.g., -1), normalize before export.
Binary columns: raw bytes are not rendered; convert to hex/base64 or drop before export.

After conversion

Apply number/date formats and thousand separators for readable reports.
Use Format as Table and slicers for quick filtering.
Build a PivotTable to summarize by category, date, or region in seconds.
Protect sheets or freeze panes for cleaner navigation in large workbooks.

Feather is perfect for pipelines; Excel is perfect for people. This converter bridges both worlds, turning a high-performance Arrow table into a clear, filterable workbook you can share with any stakeholder—no special software required.

Feature	Online Converters	CoolUtils Desktop	Excel Built-in	Other Software
Batch Conversion	Limited	✅ Unlimited	Manual only	Limited
File Size Limit	1-5MB	✅ No limits	System dependent	Varies
Privacy & Security	Upload required	✅ 100% offline	✅ Local only	Varies
Conversion Speed	Internet dependent	✅ Fast local processing	Slow	Medium
Advanced Options	Basic	✅ Full customization	Limited	Basic
Cost	Free/Premium	One-time purchase	Requires Office	Subscription
Formatting Preservation	Good	✅ Excellent	Good	Varies
Multiple Formats Support	Limited	✅ 40+ formats	Few formats	Limited

Convert FEATHER to XLSX Online

How to convert FEATHER to XLSX?

FEATHER File

XLSX File

FAQ ▼

How do I convert a FEATHER to XLSX for free?

How do I convert a FEATHER to XLSX for free?

How do I save an FEATHER as a XLSX?

How do I save an FEATHER as a XLSX?

How do I open a FEATHER file?

How do I open a FEATHER file?

Is it safe to convert my files online?

Is it safe to convert my files online?

Can I convert files using my mobile device?

Can I convert files using my mobile device?

FEATHER to XLSX: share columnar data in a familiar spreadsheet

What converts well

Typical workflow

Tips for best results

Limitations to know

After conversion

Convert from FEATHER

Convert to XLSX