I have some code in VB that saves all XLSM files as XLSX. I already have the code that will do that for me, but dialog boxes show up for every action. This was fine for a fe
It sounds like you would benefit from using an automation utility. If you were using a windows PC I would recommend AutoHotkey. I haven't used automation utilities on a Mac, but this Ask Different post has several suggestions, though none appear to be free.
This is not a VBA solution. These macros run outside of Excel and can interact with programs using keyboard strokes, mouse movements and clicks.
Basically you record or write a simple automation macro that waits for the Excel "Save As" dialogue box to become active, hits enter/return to complete the save action and then waits for the "Save As" window to close. You can set it to run in a continuous loop until you manually end the macro.
Here's a simple version of a Windows AutoHotkey script that would accomplish what you are attempting to do on a Mac. It should give you an idea of the logic involved.
; ' Infinite loop. End the macro by closing the program from the Windows taskbar.
Loop {
; ' Wait for ANY "Save As" dialogue box in any program.
; ' BE CAREFUL!
; ' Ignore the "Confirm Save As" dialogue if attempt is made
; ' to overwrite an existing file.
WinWait, Save As,,, Confirm Save As
IfWinNotActive, Save As,,, Confirm Save As
WinActivate, Save As,,, Confirm Save As
WinWaitActive, Save As,,, Confirm Save As
sleep, 250 ; ' 0.25 second delay
Send, {ENTER} ; ' Save the Excel file.
; ' Wait for the "Save As" dialogue box to close.
WinWaitClose, Save As,,, Confirm Save As
}