You can azure data factory to load data from an excel file into azure synapse. You can automate the copy as well. If you are using azure synapse analytics, you can use synapse pipelines instead of azure data factory to load excel file into sql pool.
Where is the excel file located?
If the excel file is on your machine, you can setup SHIR to load the contents of excel file into azure synapse sql pool using copy activity in ADF. if the excel file is in storage account, you need to setup the linked service pointing the storage account and then you can do the rest.