Close excel
Open windows explorer
Rename the files and remove any square brackets ([]) in the file name.

Open the files in excel and try renaming the worksheets again.

jwilliam33 wrote:

I have several worksheets within an Excel file, however, when I renamed them,
they all saved with a .xls] extension and now I am unable to rename them and
cannot include them in a formula without an error. How do I rename the
worksheets without the extensions as the normal renaming function will not
allow me to do so. Thanks.
--
Jay W.

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Dave Peterson