1) Upload CSV 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 CSV 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Have an outdated Microsoft Office 2003?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 CSV 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 | .CSV |
| Category | Document File |
| Description | CSV is a plain text format used for representing database tables. Each data box (cell) is enclosed in commas. Each line is a table row with data cells. It is a perfect format for transporting tables from one application to another. CSV files can be edited in OpenOffice Calc, MS Excel and many others. Being a plain text in actual fact, CSV tables are compatible with various text editing programs. It doesn't support formatting, so any data structuring is made with the use of special characters. |
| Associated programs | The CSV file format is very simple and supported by almost all spreadsheets and database management systems |
| Developed by | Microsoft |
| MIME type | text/csv |
| Useful links | More detailed information on CSV files |
| Conversion type | CSV 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 |
Welcome to our online CSV to XLSX conversion tool, a game-changer in data management for professionals and enthusiasts alike. This tool is designed to facilitate the effortless transformation of CSV (Comma-Separated Values) files into the more complex and flexible XLSX format, enabling more efficient data manipulation and presentation.
Converting CSV files to XLSX unlocks a multitude of benefits. While CSV files are excellent for simple data storage and interoperability, they lack the advanced formatting and analytical capabilities inherent in XLSX files. By converting your CSV files, you gain access to Excel's powerful features like formulas, pivot tables, and varied formatting options, enhancing both the appearance and functionality of your data.
Using our tool is as simple as uploading your CSV file and clicking 'Convert.' It processes your data swiftly and ensures that your content is transformed accurately, preserving the integrity of your information.
What sets this tool apart from other converters is its intuitive interface, lightning-fast processing, and robust security measures that safeguard your data. Unlike other services, our tool guarantees that your files remain confidential and are deleted from our servers after processing, providing peace of mind with every conversion. Experience the perfect blend of efficiency and security with our top-tier CSV to XLSX converter.
| 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 |