Corbett
Corbett XLS to CSV Converter converts XLS, XLSX, XLSM and XLT workbooks to CSV UTF-8 in bulk, with every sheet included. Save sheets as separate CSV files, as one file or under a common header. Excel does not need to be installed. Try free demo first.
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Works offline on your PC. Corbett never sees your workbooks.
Free demo, scanned clean on VirusTotal and a 30-day money-back window.
Lifetime licence from $29 Demo converts 5 Excel files
Quick answer
An XLS to CSV converter opens Excel workbooks and saves their sheets as CSV files. Corbett XLS to CSV Converter does that offline on Windows, so a folder of workbooks with many tabs becomes clean CSV UTF-8 files in one batch.
What it opens
XLS, XLSX, XLSM and XLT files and folders
What it saves
CSV UTF-8, one file per sheet, one file for all or a common header
Who uses it
Analysts, admins and anyone feeding data to a CRM or database
Conversion scope
A workbook with many tabs gives one CSV per save in Excel, and older CSV types break accented and Asian text. XLS to CSV converter reads every sheet on Windows and writes clean UTF-8 files, with your workbooks left as they were.
Kept in the CSV
5Excel inputs
5Save options
5CSV cannot hold
4Excel Save As writes the active sheet only
Microsoft guide to saving a workbook as CSV says the CSV (comma delimited) type saves only the active sheet, and that saving in any text format removes all formatting. A workbook with twelve monthly tabs means twelve saves. XLS to CSV converter reads every sheet of every workbook in a folder and saves them together.
Related pages: vCard Converter, CSV File Splitter and MBOX Converter. Mail files sit on email converter tool page.
Core features
Five screens of Corbett XLS to CSV converter software, in conversion order.
Source files
Select Open, then Choose Files for single workbooks or Choose Folders for a directory full of them. XLS, XLSX, XLSM and XLT files load side by side.
Excel does not need to be installed. XLS to CSV converter reads your workbooks and leaves them as they were.
File list
Every loaded workbook appears in the file list with a checkbox beside it. Tick the ones to convert and leave drafts or old copies out.
Files from subfolders sit in one list, so XLS to CSV converter handles mixed Excel formats in a single session. Large workbooks convert too.
Sheet preview
The sheet shows in rows and columns before anything is written, so a wrong header or an empty tab shows up early.
Sheet contains headers treats the first row as column names. Show all records lists the full sheet in the pane. Quick search and keyword match sit above the preview.
Selective export
The search bar above the preview narrows a sheet by keyword. Export one region, one customer or one month of rows and skip the rest.
Matching rows show in the preview before you save. With no search set, the full sheet converts, and your source workbook stays untouched.
Save options
Three save modes cover most jobs. Save all sheets as separate files, save sheets into a single file or merge them into one CSV under a common header.
No Sheet Header drops the header row when the target system does not want it. Select Browse to choose a folder, then Save.
Working process
Four steps take your workbooks to CSV UTF-8. Try them on a few files in free demo first.
Add your workbooks
Start XLS to CSV converter, select Open, then Choose Files for single workbooks or Choose Folders for a directory.
Preview and select sheets
Your workbooks load in one list. Tick what you need, preview the rows and search by keyword to trim your conversion.
Choose a save mode
Select separate CSV for every sheet, one file for all sheets or a common header file. Switch on No Sheet Header if needed.
Save your CSV files
Select Browse for a folder and press Save. Open Folder takes you to your CSV output.
Every window is shown in XLS to CSV Converter guide.
Working process
Prefer screenshots? Open XLS to CSV Converter guide for every window.
Advanced options
Small options that save hours when you convert Excel files in bulk with XLS to CSV converter.
Every sheet converts
All tabs of a workbook, not only the active one
Folder batches
Choose Folders loads a directory with its subfolders
Large workbooks
Big files convert with no Excel needed
Sheet preview
Rows and columns show before anything is written
Keyword search
Export only the rows that match
Header control
Sheet contains headers and No Sheet Header options
Separate files
One CSV for every sheet
One file for all
All sheets saved into a single CSV
Common header file
Rows from many workbooks under one header
UTF-8 output
Accented, Cyrillic, Arabic and Chinese text stays readable
Custom folder
Save to local, USB and network folders
Open Folder button
Jump straight to your CSV output
Input and output
XLS to CSV converter opens four Excel formats and saves three CSV layouts. Match your save mode to the system that will read your data.
XLS
Excel 97-2003 workbooks
XLSX
Microsoft 365 and modern Excel workbooks
XLSM
Workbooks saved with macros
XLT
Excel template files
Separate CSV files
One file for every sheet
Single CSV file
All sheets saved into one file
Common header file
One header row over merged rows
CSV UTF-8
The encoding used for every file
Free demo
Test XLS to CSV Converter on Real Workbooks
Install free demo, load real workbooks and convert up to 5 Excel files. Open the CSV in a text editor before buying.
Download free demoTry before you buy
Free demo of XLS to CSV converter loads, previews and searches your workbooks. Only conversion is capped.
| Feature | Free demo | Full version |
|---|---|---|
| Load workbooks and folders | Yes | Yes |
| Preview, search and save modes | All available | All available |
| Excel files converted | 5 | Unlimited |
| Workbook size and sheet count | Conversion stops at 5 files | No limit |
| Price | Free | From $29 one time |
Use cases
Anyone who must convert Excel files that a system will not read as they are.
Analysts with monthly tabs
XLS to CSV converter saves every monthly tab as its own CSV, so one pass replaces twelve saves.
IT admins and database teams
Convert a folder of workbooks to CSV UTF-8 for a database or CRM import in one batch.
Global teams
Names in accented, Cyrillic, Arabic or Chinese text stay readable, because every file saves as UTF-8.
Report builders
Merge rows from many workbooks into one CSV under a common header.
Anyone with old XLS files
Open Excel 97-2003 files without Excel and save them as CSV.
Data cleaners
Search by keyword and export one region, customer or month of rows.
Why Corbett
No subscription
Lifetime price from $29
Works offline
No sign-in and no upload
Originals stay safe
Workbooks open read only
No Excel needed
Convert files with no Office
All sheets
Every tab saves, not only the active one
Folder batches
Choose Folders loads a directory
UTF-8 by default
Any language stays readable
30-day refund
Money-back window after purchase
Before conversion
XLS to CSV converter converts cell values into CSV files. Here is what that covers and where it stops.
| Capability | Supported | What it means |
|---|---|---|
| Excel formats | Yes | XLS, XLSX, XLSM and XLT workbooks convert |
| Every sheet | Yes | All tabs save, as separate files, one file or a common header file |
| CSV UTF-8 | Yes | Text in any language stays readable |
| Excel installed | Not needed | Files convert on a PC with no Office |
| Source workbooks | Read only | Output goes to a new folder and your originals stay as they were |
| Formulas | Values only | A CSV holds the result a cell shows, not the formula |
| Charts, colours and macros | Not in CSV | CSV is plain text, so formatting does not carry over |
| Mac and Linux | No | XLS to CSV converter installs on Windows only |
Excel or tool
Microsoft guide to saving a workbook as CSV says Save As in CSV type writes the active sheet only. For one sheet that is enough. Folders of multi-tab workbooks are where a converter earns its price.
| Job | Excel Save As | XLS to CSV Converter |
|---|---|---|
| Cost | Included with Excel | From $29 one time |
| One sheet, once | Works fine | Works too |
| Multi-tab workbooks | Active sheet only | All sheets in one pass |
| Folder of workbooks | One file at a time | Full folders in a batch |
| Non-English text | UTF-8 chosen by hand | UTF-8 by default |
| Merged output | Copy and paste | One CSV with common header |
| Header row control | Edit the sheet first | No Sheet Header option |
| Excel installed | Required | Not needed |
Mailbox data to CSV is covered in Export Outlook emails to CSV.
Specifications
Download details
System
Supported editions
Windows 11, 10, 8 and 7 in 32-bit or 64-bit, plus Windows Server 2008 to 2019.
No macOS or Linux build.
Corbett has built Windows email utilities since 2020. Converter support is handled by the people who build it.
User testimonials
XLS to CSV converter shares 1,698 reviews on download portals and in support tickets.
Collected across 1,698 reviews left on download portals and in support tickets. Both quotes appear unedited.
For the past month, I have been using Corbett XLS to CSV converter for converting multiple Excel files into CSV format. With this tool I can quickly export my files and save so much time. Hence, it is a great way to convert your files.
My Excel files contain a lot of special characters that make it difficult to convert. But after using this software, I can now easily export my files into CSV UTF-8 format. It is a simple and very reliable software.
Before conversion
CSV keeps values only. Three checks in Excel first save a second conversion.
Formulas reach the CSV as values
Microsoft guide to saving a workbook as CSV says text formats remove all formatting. A CSV stores the value a cell shows. If a formula still reads #REF! or #N/A in Excel, fix it there first, or that error text lands in your CSV.
Store codes as text
ZIP codes and phone numbers lose leading zeros when a CSV opens by double click in Excel. Format those columns as Text in your workbook, and import the CSV through Data, From Text.
Check what the target expects
Most systems read a comma. Some European setups expect a semicolon because the comma is their decimal mark. Confirm the import settings of the receiving app first.
Need to cut a large CSV into parts afterwards? Use CSV File Splitter.
Best practice
A conversion only helps if your data arrives complete. Four habits keep it safe.
Back up first
Copy your original workbooks before you start. Keep 3 copies on 2 types of media with 1 copy off site.
Start with one workbook
Convert one small workbook with XLS to CSV converter and open the CSV in a text editor. Catch a wrong setting before a large job.
Check the row count
Compare the row count in your sheet with the lines in your CSV before you close the job.
Keep originals until checked
Store your source workbooks until counts match. Delete them only after you open the CSV in the target system.
Common questions
XLS to CSV converter steps, encoding, headers and licence answers.
An XLS to CSV converter opens Excel workbooks and saves their sheets as CSV files. Corbett XLS to CSV Converter does that offline on Windows, so Excel file converter needs no Office.
Open XLS to CSV converter, select Open and choose Files or Folders. Preview your sheets, select a save mode, set a destination and press Save.
Yes. All sheets convert, as separate CSV files, together in one file or under a common header. Microsoft guide to saving a workbook as CSV says Excel Save As writes the active sheet only.
Microsoft guide to saving a workbook as CSV says the CSV (comma delimited) type saves only the active sheet. XLS to CSV converter reads every tab, so one pass replaces a save for every sheet.
XLS, XLSX, XLSM and XLT, from Excel 97-2003 files to current Microsoft 365 workbooks.
Yes. Output uses CSV UTF-8, so accented, Cyrillic, Arabic or Chinese text stays readable.
Yes. Select the common header save mode and rows from every file land in a single CSV under one header row.
Yes. Switch on No Sheet Header before saving, and your CSV starts with the first data row.
No. XLS to CSV converter reads Excel files on its own, so it works on a PC without Office.
Yes. Search the sheet by keyword in the preview and export only the matching rows.
No. Microsoft guide to saving a workbook as CSV says text formats remove formatting, and a CSV holds the value every formula showed. Your workbook is not changed.
Yes. Choose Folders loads every Excel file in that directory, and XLS to CSV converter converts them in one session.
Format those columns as Text in your workbook before you convert. A CSV opened by double click in Excel drops leading zeros, so import it through Data, From Text instead.
XLS to CSV converter writes standard comma separated files. Some European systems expect a semicolon, so check the import settings of your receiving app first.
Yes. Sheet rows and columns show before anything is written. Sheet contains headers treats the first row as column names, and Show all records lists the full sheet.
Wherever you point the Browse button. Select Open Folder after saving to jump to your output.
No. XLS to CSV converter opens your files read only, and output goes to a new folder.
No. Conversion happens on your PC with no upload. Corbett never sees your workbooks.
Use CSV File Splitter to cut a large CSV into parts. Pair it with XLS to CSV converter for very large sheets.
No. XLS to CSV converter installs on Windows only. Copy your workbooks to a Windows PC and convert them there.
Free demo of XLS to CSV converter loads your workbooks and gives you preview, search and every save mode. Conversion stops at 5 Excel files, enough to check your output before you buy.
Windows 11, 10, 8 and 7 in 32 bit or 64 bit, plus Windows Server 2008 to 2019. There is no macOS or Linux build.
Personal licence covers 2 PCs for $29, Business covers 10 for $49 and Enterprise covers 50 for $299. All three are one time payments with free lifetime upgrades and 24/7 support, and refunds are open for 30 days.
CSV guides
Every page below covers one CSV job and answers questions it raises.
Other mail files sit on email converter tool page. Account moves use Email Migration Tool or IMAP Migration Tool, broken archives belong with email recovery software and email viewer software opens mail files free. Save a live account with Office 365 Backup Tool, Outlook.com Backup Tool or Gmail Backup Tool.
Get started
Test XLS to CSV Converter on a few workbooks first. Full access is from $29 in a single payment, and refunds are open for 30 days.
Download free demo Purchase now
8 MB · Windows 11 to 7 and Windows Server 2019 to 2008 · 30 day money back