right click sheet tab>select all sheets>enter desired>select one sheet

If a one-time operation..............

Select first sheet tab the right-click and "select all sheets"

Assuming list of names to go into A1:H1

Enter your list of names on the active sheet and will be done to all sheets.

DO NOT FORGET to right-click and ungroup the sheets or click on any sheet but
the active one to ungroup.

If an ongoing operation, you will have to link each sheet to the first sheet.

Select second sheet and SHIFT + click on last sheet to select all but first
sheet.

Select A1 on the active sheet and enter  =Sheet1!A1 then drag/copy across to H1

Ungroup the sheets.

Gord Dibben  MS Excel MVP