Tom Urtis / Atlas Programming

Tom Urtis / Atlas Programming Expert consulting, training, project development for Microsoft Excel. Comprehensive skills testing wi

Atlas Programming Management is all about the business of Microsoft Office, particularly Excel. We provide a variety of services and support to business clients & individual Excel users at all skill levels. Our website is also an extensive resource offering expert information, tips and tools

Calculating the number of days in a month, with a proration and verification example.
06/05/2026

Calculating the number of days in a month, with a proration and verification example.

Data Validating time entry in 5-minute increments with example custom formula =MOD(MINUTE(C5),5)=0.
06/04/2026

Data Validating time entry in 5-minute increments with example custom formula =MOD(MINUTE(C5),5)=0.

Filling selected cells to the right with the Ctrl+R keyboard shortcut.
06/03/2026

Filling selected cells to the right with the Ctrl+R keyboard shortcut.

Customizing the right-click menu to modify your default double-click behavior by selecting an entire cell's contents for...
06/02/2026

Customizing the right-click menu to modify your default double-click behavior by selecting an entire cell's contents for fast and easy editing.

Formatting to color and bold a specified word in all cells' constant strings.
06/01/2026

Formatting to color and bold a specified word in all cells' constant strings.

Double-clicking any cell in a range of data to toggle-sort the range by ascending or descending order of that cell's col...
05/29/2026

Double-clicking any cell in a range of data to toggle-sort the range by ascending or descending order of that cell's column.

Formatting a comment shape's individual lines of text with a different color.
05/28/2026

Formatting a comment shape's individual lines of text with a different color.

Showing a vertical divider between ListBox fields without affecting the worksheet or source data range.
05/27/2026

Showing a vertical divider between ListBox fields without affecting the worksheet or source data range.

Bubble-sorting a ListBox at Initialization without touching the source data.
05/26/2026

Bubble-sorting a ListBox at Initialization without touching the source data.

05/25/2026

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