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Monthly Archives: September 2014
Extracting Digits from Text: Using Formulas and Designing a Missing Excel Function: GROUPS
An Excel problem that crops up quite often is how to extract digits (0-9) from text. The text might be part numbers, or web addresses, or currency values or … Some cases are easy to handle with formulas: A fixed … Continue reading
Getting Used Range in an XLL UDF: Multi-threading and COM
In two previous blog posts I discussed why handling whole-column references efficiently in VBA UDFs meant that you had to find the used range for the worksheet containing the whole-column reference. The posts also discussed how using a cache for … Continue reading
Excel and UDF Performance Stuff 