Need help? Reach us at 
+1 (855) 418-2323
Need help? Reach us at
+1 (855) 418-2323
File Converters TIFF and PDF apps Forensic Freeware1) Upload XLS file to convert
Drop files here, or Click to select
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 XLS to XLSX options
3) Get converted file
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a separate file.Tell Total Excel Converter to copy original time stamps if you don't want to change the date.Have an outdated Microsoft Office 2003?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).
Upload Your File: Go to the site, click on «Upload File,» and select your XLS 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.
| File extension | .XLS |
| Category | Document File |
| Description | XLS is the most popular format for storing table data. It is native Microsoft Excel format with data stored in numbered cells that form columns and rows. The top line and left column of each table contains numbering of each cell that can contain either static or dynamic data that is calculated from formulas. XLS features powerful calculation and charts-building options, as well as rich text formatting. XLS is compatible with numerous table editors such as Calc, PlanMaker, OpenOffice, etc. |
| Associated programs | Microsoft Excel Microsoft Excel Viewer OpenOffice |
| Developed by | Microsoft |
| MIME type | application/vnd.ms-excel |
| Useful links | More detailed information on XLS files |
| Conversion type | XLS to XLSX |
| 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 |
Our online conversion tool provides a seamless experience for transforming your Excel files from XLS to XLSX format. As technology evolves, the need to streamline data management and enhance compatibility across devices becomes paramount. This tool is designed to meet those needs by effectively converting older Excel files into the modern, more versatile XLSX format.
The benefits of converting to XLSX are numerous. The XLSX format, introduced by Microsoft with Excel 2007, offers greater efficiency in file storage and data processing. It supports a wider range of features, including enhanced data recovery options, improved data integrity, and greater compatibility with contemporary software, making it the preferred choice for businesses and individuals alike.
Our conversion tool operates online, eliminating the need for software installation. Simply upload your XLS file, and the conversion process will be executed swiftly, preserving the original formatting and data content. This ensures that the transition to XLSX retains the accuracy and functionality of your spreadsheets.
What sets our tool apart is its focus on user convenience and data security. We prioritize user privacy by using secure file transfer protocols and ensuring that your files are automatically deleted from our servers after conversion. Additionally, our intuitive interface simplifies the process, making it accessible even to users with limited technical expertise.
Whether you are working on individual projects or managing large data sets, this conversion tool provides a reliable solution for modernizing your Excel files. Experience the efficiency and adaptability of XLSX with our straightforward online tool.
| 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 |
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