Assist Pro+ / Data Cleaning

Convert .xls to .xlsx

Convert the active .xls workbook to .xlsx.

Where to find it

Follow the ribbon path.

Assist Pro + → Data Cleaning → Sheets → Convert .xls to .xlsx

Part of Assist Pro+. Eligible tools can also be selected through Assist Pro’s 30-tool Vault allowance. Check the Vault for availability.

Open the tool and follow its prompts. Use a copy of your workbook when trying an action for the first time, then check the result.

Browse all tools

Practical guidance

Use this tool in your workflow.

How to use

Activate the correct workbook and back up sheets that could be changed or deleted. On Assist Pro + › Data Cleaning › Sheets, choose Convert .xls to .xlsx to convert the active .xls workbook to .xlsx. Inspect added, removed or reordered sheets before saving.

Best use case

Updating older spreadsheet files to the modern Excel format.

Everyday Excel

Saves repeated work managing multi-sheet workbooks when you need to convert the active .xls workbook to .xlsx.

Accounting and audit

Helps organise and combine client TBs, ledger extracts and working papers by helping convert the active .xls workbook to .xlsx.