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Spreadsheet Conversion

Convert XLS to XLSM Online — Free

Fast, free XLS to XLSM converter. No registration required.

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1

Upload your .xls file by dragging it into the upload area or clicking to browse.

2

Choose your output settings. The default settings work great for most files.

3

Click Convert and download your .xlsm file when it's ready.

Hva er XLS?

XLS is the legacy Microsoft Excel format used before Office 2007. While superseded by XLSX, it's still widely found in enterprise data exports and archived files.

Formatdetaljer

Fullt navn
Microsoft Excel 97-2003
Filendelse
.xls

Viktige egenskaper

  • Legacy support
  • Wide compatibility
  • Spreadsheet
  • Data analysis

Hva er XLSM?

XLSM is a macro-enabled Microsoft Excel format. It supports VBA macros for spreadsheet automation while using the same Open XML structure as XLSX.

Formatdetaljer

Fullt navn
Excel Macro-Enabled
Filendelse
.xlsm

Viktige egenskaper

  • VBA macros
  • Open XML format
  • Excel compatible
  • Automation support

XLS vs XLSM

EgenskapXLSXLSM
Fullt navnMicrosoft Excel 97-2003Excel Macro-Enabled
Filendelse.xls.xlsm
Best egnet forLegacy supportVBA macros

Ofte stilte spørsmål

Yes. You can convert up to 5 files per day completely free, with no watermark or registration required. Pro users get unlimited conversions and larger file sizes.
Most files convert in under 30 seconds. Larger files may take 1-3 minutes. Processing runs on our servers, so your device stays fast.
Our converter uses optimized settings to preserve quality. Default settings prioritize quality over file size. You can adjust settings for more control.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB with priority processing.
Yes. Our converter is browser-based and works on any device — iPhone, Android, tablet, or desktop. No app or software installation needed.

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XLS to XLSXXLS to CSVXLS to ODSXLS to SXCXLS to ExcelXLS to OTSXLS to XLTXLS to XLTM