Question: how do i import an excel spreadsheet into a geodatabase?
Answer: Save the Excel table as a tab-delimited text file or CSV file by navigating to File > Save As > Save As Type.
In ArcMap, navigate to ArcToolbox > Conversion Tools > To Geodatabase > Table to Table.
In the Table to Table dialog box, for Input Rows, select the tab-delimited text file or CSV file from step 1.