diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..08bd951
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+Excel/** filter=lfs diff=lfs merge=lfs -text
diff --git a/Excel/伏安特性.xlsx b/Excel/伏安特性.xlsx
new file mode 100644
index 0000000..f280151
--- /dev/null
+++ b/Excel/伏安特性.xlsx
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fbc3e1e6f78788ae362ab1c3b4487c26f3c9f57879f8874b5d2bd9aa58ae509f
+size 29999
diff --git a/Excel/单缝衍射.xlsx b/Excel/单缝衍射.xlsx
new file mode 100644
index 0000000..53692d4
--- /dev/null
+++ b/Excel/单缝衍射.xlsx
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:acda92511142e6b173cdcc223e1c2e49b734039321605541a2c34aff8ee9f8c7
+size 14896
diff --git a/Excel/霍尔效应.xlsx b/Excel/霍尔效应.xlsx
new file mode 100644
index 0000000..6275d30
--- /dev/null
+++ b/Excel/霍尔效应.xlsx
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5cad97cc87660b1bb2290092f0e06abe5cadaa5331e7e3c84d93f316d91627ec
+size 19926
diff --git a/README.md b/README.md
index 35c8c2e..e7ea755 100644
--- a/README.md
+++ b/README.md
@@ -5,3 +5,5 @@
 纯粹vibe code，不过是Gemini pro和claude opus写的，质量很不错。
 
 如果你想让我添加新工具，可以提issue，也可以提pr。
+
+[Excel](./Excel)文件夹里的是Excel xlxs文件，可以简单参考。
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