diff --git a/pcbs/CurrentSource/History/.gitignore b/pcbs/CurrentSource/History/.gitignore
new file mode 100644
index 0000000..d469372
--- /dev/null
+++ b/pcbs/CurrentSource/History/.gitignore
@@ -0,0 +1 @@
+*.~(1).SchDoc.Zip
diff --git a/pcbs/CurrentSource/__Previews/.gitignore b/pcbs/CurrentSource/__Previews/.gitignore
new file mode 100644
index 0000000..1d17bbb
--- /dev/null
+++ b/pcbs/CurrentSource/__Previews/.gitignore
@@ -0,0 +1 @@
+*.SchDocPreview