diff --git a/auto_archive.py b/auto_archive.py
index 375c5be..840ccdc 100644
--- a/auto_archive.py
+++ b/auto_archive.py
@@ -58,6 +58,19 @@ def process_sheet(c: Config):
 
     # loop through worksheets to check
     for ii, wks in enumerate(sh.worksheets()):
+
+        whitelist = c.worksheet_whitelist
+        if whitelist is not None:
+            if wks.title != whitelist: 
+                logger.debug(f'Ignoring worksheet {wks.title} as not in whitelist which is specified as {whitelist}')
+                continue
+
+        blacklist = c.worksheet_blacklist
+        if blacklist is not None:
+            if wks.title == blacklist: 
+                logger.debug(f'Ignoring worksheet {wks.title} as in blacklist')
+                continue
+
         logger.info(f'Opening worksheet {ii=}: {wks.title=} {c.header=}')
         gw = GWorksheet(wks, header_row=c.header, columns=c.column_names)
 
diff --git a/configs/config.py b/configs/config.py
index 4232651..98fabe9 100644
--- a/configs/config.py
+++ b/configs/config.py
@@ -50,6 +50,10 @@ class Config:
 
         self.sheet = getattr_or(self.args, "sheet", execution.get("sheet"))
         assert self.sheet is not None, "'sheet' must be provided either through command line or configuration file"
+
+        self.worksheet_whitelist = execution.get("worksheet_whitelist")
+        self.worksheet_blacklist = execution.get("worksheet_blacklist")
+
         self.header = int(getattr_or(self.args, "header", execution.get("header", 1)))
         self.storage = getattr_or(self.args, "storage", execution.get("storage", "s3"))
         self.save_logs = getattr(self.args, "save_logs") or execution.get("save_logs", False)
diff --git a/example.config.yaml b/example.config.yaml
index c5b6a76..8778bba 100644
--- a/example.config.yaml
+++ b/example.config.yaml
@@ -65,6 +65,14 @@ secrets:
 execution:
   # can be overwritten with CMD --sheet=
   sheet: your-sheet-name
+
+  # only check this worksheet rather than iterating through all worksheets in the spreadsheet. If whitelist is used then blacklist is ignored as whitelist is more restrictive.
+  # worksheet_whitelist: Sheet1
+
+  # worksheet to blacklist. Leave blank which is default for none. Useful if users want a MASTERSHEET exact copy of the working worksheet
+  # worksheet_blacklist: MASTERSHEET
+
+
   # which row of your tabs contains the header, can be overwritten with CMD --header=
   header: 1
   # which storage to use, can be overwritten with CMD --storage=