Convert ODS to XLSX Online

CONVERT ODS to XLSX ONLINE

1) Upload ODS file to convert

Drop files here, or Click to select

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Allowed file types: fasta, qif, ofx, iif, srt, ics, 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 ODS 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 ODS to XLSX and in many other formats
Convert hundreds of spreadsheets in 3 clicks;
Both MS Office and OpenOffice files;
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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Have an outdated Microsoft Office 2003?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 ODS to XLSX?

💾 Upload Your File: Go to the site, click on «Upload File,» and select your ODS 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 ODS 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 ODS to XLSX online has never been so simple. Drop your LibreOffice Calc or OpenOffice spreadsheet and the converter produces a standards-compliant Excel workbook — cells, formulas, named ranges, multiple sheets, and formatting intact. No LibreOffice or Excel installation required.

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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.

ODS File

File extension	.ODS
Category	Document File
Description	ODS is a native table format of OpenDocument. It was developed by OASIS community based on XML, and in 2006 it was recognized as international ISO/IEC 26300 standard. The electronic tables of such kind can be created or modified in OpenOffice Calc. ODS is an open source alternative to commercial DOC, XLS and PPT. The latest versions of MS Office support ODS, as well other table data processors for Windows, Linux and MacOS. Formatting can be lost if to save Excel tables into ODS
Associated programs	Microsoft Office 2007 Microsoft Office 2010 OpenOffice Calc
Developed by	Sun Microsystems
MIME type	application/vnd.oasis.opendocument.spreadsheet
Useful links	More detailed information on ODS files
Conversion type	ODS 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 ODS to XLSX

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ODS to XLSX Converter — Frequently Asked Questions ▼

Are formulas preserved when converting ODS to XLSX?

Standard mathematical and statistical formulas (SUM, AVERAGE, IF, VLOOKUP, COUNTIF, etc.) use equivalent syntax in both ODS (LibreOffice Calc) and XLSX (Excel) and convert correctly. LibreOffice-specific functions that have no Excel equivalent — such as some statistical functions with different parameter orders — are evaluated to their current result and stored as static values in the XLSX. Review formulas in complex ODS files after conversion to verify calculation results.

Will multiple sheets in my ODS file all appear in the XLSX output?

Yes. All sheets (tabs) in the ODS workbook are converted to corresponding worksheets in the XLSX output. Sheet names and sheet order are preserved. Inter-sheet formula references (e.g., =Sheet2.B5) are converted to the equivalent XLSX syntax (=Sheet2!B5).

Does the converter preserve conditional formatting from ODS?

Basic conditional formatting rules (cell value comparisons, color scales) that have direct equivalents in Excel are preserved. Complex ODS-specific conditional formatting rules with no XLSX equivalent may be simplified or dropped. Visual appearance of cells with applied conditional formatting is preserved through direct cell formatting in cases where the rule cannot be transferred.

Can I convert ODS files that contain charts?

Charts embedded in ODS files use OpenDocument Chart format. Simple chart types (bar, line, pie, scatter) that have direct counterparts in Excel convert to equivalent XLSX chart objects. Complex ODS chart types with no Excel equivalent may be converted to a static image embedded in the XLSX sheet.

My ODS file uses LibreOffice-specific number formats — will they survive in XLSX?

Common number formats (dates, currency, percentages, thousands separators) transfer correctly. LibreOffice-specific format codes that differ from Excel's format code syntax may be converted to their closest Excel equivalent. The underlying cell values are always preserved — only the display format may change slightly.

What is the difference between ODS and XLSX file size after conversion?

ODS and XLSX use similar storage structures (XML inside a ZIP container), so file sizes are typically comparable after conversion. A large ODS with many embedded images may produce a slightly larger XLSX if image format conversion occurs. In most cases, the size difference is under 10%.

I need to batch convert 1,000 ODS files to XLSX — is there a desktop option?

Total Excel Converter (Windows, $29.90) converts entire directories of ODS files to XLSX from the command line: `TotalExcelConverter.exe C:\ods_files C:\xlsx_output /ConvertTo xlsx /ProcessRecursively`. This is the standard tool for migrating LibreOffice Calc archives to Excel format for organizations transitioning to Microsoft 365.

Convert ODS to XLSX Online — LibreOffice Spreadsheets to Excel Format

ODS files from LibreOffice Calc or OpenOffice open in Excel, but formula compatibility, conditional formatting, and pivot tables can break in the process. Converting ODS to XLSX using a dedicated converter produces a clean Open XML spreadsheet that Excel, Google Sheets, and Power BI read without compatibility warnings. Drop your .ods file here and get a standards-compliant .xlsx with cells, formulas, named ranges, and multiple sheets preserved — no LibreOffice or Excel installation required.

What Is an ODS File?

ODS (OpenDocument Spreadsheet) is the native spreadsheet format of LibreOffice Calc, Apache OpenOffice, and Google Sheets. Defined by the OASIS OpenDocument standard (ISO 26300), ODS stores data in XML inside a ZIP archive — similar in principle to XLSX. ODS is the preferred format in many European government institutions and educational organizations that have adopted open-source office software. Functions, cell formatting, multiple sheets, and chart objects are all supported. However, Microsoft Excel does not support 100% of ODS features — some ODS-specific functions have no Excel equivalent.

What Is an XLSX File?

XLSX (Office Open XML) is the Excel format since Office 2007 and the global standard for spreadsheets (ISO 29500). It stores data as XML in a ZIP container with separate files for workbook structure, worksheet content, shared strings, styles, and charts. XLSX is natively supported by Microsoft Excel, Google Sheets, LibreOffice Calc, Apple Numbers, and every major BI tool (Power BI, Tableau, Qlik). Sending data as XLSX ensures the recipient can open it with full fidelity in their preferred tool without compatibility warnings.

ODS vs XLSX — Compatibility Comparison

Feature	ODS (LibreOffice)	XLSX (Excel)
Opens in Microsoft Excel	Yes (with warnings)	Yes — native
Opens in Google Sheets	Yes	Yes (full fidelity)
Power BI / Tableau import	Limited	Full support
Formula compatibility with Excel	Most functions match	100% Excel formula support
Pivot tables	Basic (DataPilot)	Full Excel PivotTable support
Conditional formatting	Basic	Advanced rules and data bars
File size	Similar (XML in ZIP)	Similar
Standard	ISO 26300 (ODF)	ISO 29500 (OOXML)

How to Convert ODS to XLSX Online

Click Choose File or drag your .ods file into the upload area above.
The converter parses the ODF XML structure — cell values, formulas, styles, named ranges, and sheet tabs.
ODS formulas that have direct Excel equivalents are converted; others are evaluated to static values with a note.
The output is packaged as a standards-compliant XLSX file (Office Open XML).
Click Download to save the .xlsx file and open it in Excel, Google Sheets, or LibreOffice.

When Do You Need ODS to XLSX Conversion?

Sending data to Excel users: Colleagues and clients using Microsoft Excel will open XLSX with full fidelity; ODS may trigger compatibility warnings or lose formatting.
Power BI and Tableau imports: These BI tools import XLSX natively but do not accept ODS — converting first is the required workflow.
Government and EU data submissions: Many portals and regulatory submissions require XLSX format specifically.
Transitioning from LibreOffice to Excel: Organizations migrating from open-source office software can batch-convert their ODS archives to XLSX for long-term Excel compatibility.
Avoiding compatibility warnings: XLSX opens in Excel without the "This file is from a different version" dialog that ODS sometimes triggers.

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